20421156840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{709}}^1\times {\mathrm{2017}}^1$

素因数の和:2764

約数の個数: 256

約数和(自身を含む): 74275315200

約数和(自身を除く): 53854158360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 51, 56, 60, 68, 70, 84, 85, 102, 105, 119, 120, 136, 140, 168, 170, 204, 210, 238, 255, 280, 340, 357, 408, 420, 476, 510, 595, 680, 709, 714, 840, 952, 1020, 1190, 1418, 1428, 1785, 2017, 2040, 2127, 2380, 2836, 2856, 3545, 3570, 4034, 4254, 4760, 4963, 5672, 6051, 7090, 7140, 8068, 8508, 9926, 10085, 10635, 12053, 12102, 14119, 14180, 14280, 14889, 16136, 17016, 19852, 20170, 21270, 24106, 24204, 24815, 28238, 28360, 29778, 30255, 34289, 36159, 39704, 40340, 42357, 42540, 48212, 48408, 49630, 56476, 59556, 60265, 60510, 68578, 70595, 72318, 74445, 80680, 84371, 84714, 85080, 96424, 99260, 102867, 112952, 119112, 120530, 121020, 137156, 141190, 144636, 148890, 168742, 169428, 171445, 180795, 198520, 205734, 211785, 240023, 241060, 242040, 253113, 274312, 282380, 289272, 297780, 337484, 338856, 342890, 361590, 411468, 421855, 423570, 480046, 482120, 506226, 514335, 564760, 595560, 674968, 685780, 720069, 723180, 822936, 843710, 847140, 960092, 1012452, 1028670, 1200115, 1265565, 1371560, 1430053, 1440138, 1446360, 1687420, 1694280, 1920184, 2024904, 2057340, 2400230, 2531130, 2860106, 2880276, 3374840, 3600345, 4114680, 4290159, 4800460, 5062260, 5720212, 5760552, 7150265, 7200690, 8580318, 9600920, 10010371, 10124520, 11440424, 14300530, 14401380, 17160636, 20020742, 21450795, 24310901, 28601060, 28802760, 30031113, 34321272, 40041484, 42901590, 48621802, 50051855, 57202120, 60062226, 72932703, 80082968, 85803180, 97243604, 100103710, 120124452, 121554505, 145865406, 150155565, 170176307, 171606360, 194487208, 200207420, 240248904, 243109010, 291730812, 300311130, 340352614, 364663515, 400414840, 486218020, 510528921, 583461624, 600622260, 680705228, 729327030, 850881535, 972436040, 1021057842, 1201244520, 1361410456, 1458654060, 1701763070, 2042115684, 2552644605, 2917308120, 3403526140, 4084231368, 5105289210, 6807052280, 10210578420, 20421156840]

約数ペア:

[(1, 20421156840), (2, 10210578420), (3, 6807052280), (4, 5105289210), (5, 4084231368), (6, 3403526140), (7, 2917308120), (8, 2552644605), (10, 2042115684), (12, 1701763070), (14, 1458654060), (15, 1361410456), (17, 1201244520), (20, 1021057842), (21, 972436040), (24, 850881535), (28, 729327030), (30, 680705228), (34, 600622260), (35, 583461624), (40, 510528921), (42, 486218020), (51, 400414840), (56, 364663515), (60, 340352614), (68, 300311130), (70, 291730812), (84, 243109010), (85, 240248904), (102, 200207420), (105, 194487208), (119, 171606360), (120, 170176307), (136, 150155565), (140, 145865406), (168, 121554505), (170, 120124452), (204, 100103710), (210, 97243604), (238, 85803180), (255, 80082968), (280, 72932703), (340, 60062226), (357, 57202120), (408, 50051855), (420, 48621802), (476, 42901590), (510, 40041484), (595, 34321272), (680, 30031113), (709, 28802760), (714, 28601060), (840, 24310901), (952, 21450795), (1020, 20020742), (1190, 17160636), (1418, 14401380), (1428, 14300530), (1785, 11440424), (2017, 10124520), (2040, 10010371), (2127, 9600920), (2380, 8580318), (2836, 7200690), (2856, 7150265), (3545, 5760552), (3570, 5720212), (4034, 5062260), (4254, 4800460), (4760, 4290159), (4963, 4114680), (5672, 3600345), (6051, 3374840), (7090, 2880276), (7140, 2860106), (8068, 2531130), (8508, 2400230), (9926, 2057340), (10085, 2024904), (10635, 1920184), (12053, 1694280), (12102, 1687420), (14119, 1446360), (14180, 1440138), (14280, 1430053), (14889, 1371560), (16136, 1265565), (17016, 1200115), (19852, 1028670), (20170, 1012452), (21270, 960092), (24106, 847140), (24204, 843710), (24815, 822936), (28238, 723180), (28360, 720069), (29778, 685780), (30255, 674968), (34289, 595560), (36159, 564760), (39704, 514335), (40340, 506226), (42357, 482120), (42540, 480046), (48212, 423570), (48408, 421855), (49630, 411468), (56476, 361590), (59556, 342890), (60265, 338856), (60510, 337484), (68578, 297780), (70595, 289272), (72318, 282380), (74445, 274312), (80680, 253113), (84371, 242040), (84714, 241060), (85080, 240023), (96424, 211785), (99260, 205734), (102867, 198520), (112952, 180795), (119112, 171445), (120530, 169428), (121020, 168742), (137156, 148890), (141190, 144636)]