28428120

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{389}}^1$

素因数の和:442

約数の個数: 192

約数和(自身を含む): 109512000

約数和(自身を除く): 81083880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 29, 30, 35, 36, 40, 42, 45, 56, 58, 60, 63, 70, 72, 84, 87, 90, 105, 116, 120, 126, 140, 145, 168, 174, 180, 203, 210, 232, 252, 261, 280, 290, 315, 348, 360, 389, 406, 420, 435, 504, 522, 580, 609, 630, 696, 778, 812, 840, 870, 1015, 1044, 1160, 1167, 1218, 1260, 1305, 1556, 1624, 1740, 1827, 1945, 2030, 2088, 2334, 2436, 2520, 2610, 2723, 3045, 3112, 3480, 3501, 3654, 3890, 4060, 4668, 4872, 5220, 5446, 5835, 6090, 7002, 7308, 7780, 8120, 8169, 9135, 9336, 10440, 10892, 11281, 11670, 12180, 13615, 14004, 14616, 15560, 16338, 17505, 18270, 21784, 22562, 23340, 24360, 24507, 27230, 28008, 32676, 33843, 35010, 36540, 40845, 45124, 46680, 49014, 54460, 56405, 65352, 67686, 70020, 73080, 78967, 81690, 90248, 98028, 101529, 108920, 112810, 122535, 135372, 140040, 157934, 163380, 169215, 196056, 203058, 225620, 236901, 245070, 270744, 315868, 326760, 338430, 394835, 406116, 451240, 473802, 490140, 507645, 631736, 676860, 710703, 789670, 812232, 947604, 980280, 1015290, 1184505, 1353720, 1421406, 1579340, 1895208, 2030580, 2369010, 2842812, 3158680, 3553515, 4061160, 4738020, 5685624, 7107030, 9476040, 14214060, 28428120]

約数ペア:

[(1, 28428120), (2, 14214060), (3, 9476040), (4, 7107030), (5, 5685624), (6, 4738020), (7, 4061160), (8, 3553515), (9, 3158680), (10, 2842812), (12, 2369010), (14, 2030580), (15, 1895208), (18, 1579340), (20, 1421406), (21, 1353720), (24, 1184505), (28, 1015290), (29, 980280), (30, 947604), (35, 812232), (36, 789670), (40, 710703), (42, 676860), (45, 631736), (56, 507645), (58, 490140), (60, 473802), (63, 451240), (70, 406116), (72, 394835), (84, 338430), (87, 326760), (90, 315868), (105, 270744), (116, 245070), (120, 236901), (126, 225620), (140, 203058), (145, 196056), (168, 169215), (174, 163380), (180, 157934), (203, 140040), (210, 135372), (232, 122535), (252, 112810), (261, 108920), (280, 101529), (290, 98028), (315, 90248), (348, 81690), (360, 78967), (389, 73080), (406, 70020), (420, 67686), (435, 65352), (504, 56405), (522, 54460), (580, 49014), (609, 46680), (630, 45124), (696, 40845), (778, 36540), (812, 35010), (840, 33843), (870, 32676), (1015, 28008), (1044, 27230), (1160, 24507), (1167, 24360), (1218, 23340), (1260, 22562), (1305, 21784), (1556, 18270), (1624, 17505), (1740, 16338), (1827, 15560), (1945, 14616), (2030, 14004), (2088, 13615), (2334, 12180), (2436, 11670), (2520, 11281), (2610, 10892), (2723, 10440), (3045, 9336), (3112, 9135), (3480, 8169), (3501, 8120), (3654, 7780), (3890, 7308), (4060, 7002), (4668, 6090), (4872, 5835), (5220, 5446)]