20448960

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1$

素因数の和:223

約数の個数: 224

約数和(自身を含む): 79004160

約数和(自身を除く): 58555200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 17, 20, 21, 24, 28, 30, 32, 34, 35, 40, 42, 48, 51, 56, 60, 64, 68, 70, 80, 84, 85, 96, 102, 105, 112, 119, 120, 136, 140, 160, 168, 170, 179, 192, 204, 210, 224, 238, 240, 255, 272, 280, 320, 336, 340, 357, 358, 408, 420, 448, 476, 480, 510, 537, 544, 560, 595, 672, 680, 714, 716, 816, 840, 895, 952, 960, 1020, 1074, 1088, 1120, 1190, 1253, 1344, 1360, 1428, 1432, 1632, 1680, 1785, 1790, 1904, 2040, 2148, 2240, 2380, 2506, 2685, 2720, 2856, 2864, 3043, 3264, 3360, 3570, 3580, 3759, 3808, 4080, 4296, 4760, 5012, 5370, 5440, 5712, 5728, 6086, 6265, 6720, 7140, 7160, 7518, 7616, 8160, 8592, 9129, 9520, 10024, 10740, 11424, 11456, 12172, 12530, 14280, 14320, 15036, 15215, 16320, 17184, 18258, 18795, 19040, 20048, 21301, 21480, 22848, 24344, 25060, 28560, 28640, 30072, 30430, 34368, 36516, 37590, 38080, 40096, 42602, 42960, 45645, 48688, 50120, 57120, 57280, 60144, 60860, 63903, 73032, 75180, 80192, 85204, 85920, 91290, 97376, 100240, 106505, 114240, 120288, 121720, 127806, 146064, 150360, 170408, 171840, 182580, 194752, 200480, 213010, 240576, 243440, 255612, 292128, 300720, 319515, 340816, 365160, 400960, 426020, 486880, 511224, 584256, 601440, 639030, 681632, 730320, 852040, 973760, 1022448, 1202880, 1278060, 1363264, 1460640, 1704080, 2044896, 2556120, 2921280, 3408160, 4089792, 5112240, 6816320, 10224480, 20448960]

約数ペア:

[(1, 20448960), (2, 10224480), (3, 6816320), (4, 5112240), (5, 4089792), (6, 3408160), (7, 2921280), (8, 2556120), (10, 2044896), (12, 1704080), (14, 1460640), (15, 1363264), (16, 1278060), (17, 1202880), (20, 1022448), (21, 973760), (24, 852040), (28, 730320), (30, 681632), (32, 639030), (34, 601440), (35, 584256), (40, 511224), (42, 486880), (48, 426020), (51, 400960), (56, 365160), (60, 340816), (64, 319515), (68, 300720), (70, 292128), (80, 255612), (84, 243440), (85, 240576), (96, 213010), (102, 200480), (105, 194752), (112, 182580), (119, 171840), (120, 170408), (136, 150360), (140, 146064), (160, 127806), (168, 121720), (170, 120288), (179, 114240), (192, 106505), (204, 100240), (210, 97376), (224, 91290), (238, 85920), (240, 85204), (255, 80192), (272, 75180), (280, 73032), (320, 63903), (336, 60860), (340, 60144), (357, 57280), (358, 57120), (408, 50120), (420, 48688), (448, 45645), (476, 42960), (480, 42602), (510, 40096), (537, 38080), (544, 37590), (560, 36516), (595, 34368), (672, 30430), (680, 30072), (714, 28640), (716, 28560), (816, 25060), (840, 24344), (895, 22848), (952, 21480), (960, 21301), (1020, 20048), (1074, 19040), (1088, 18795), (1120, 18258), (1190, 17184), (1253, 16320), (1344, 15215), (1360, 15036), (1428, 14320), (1432, 14280), (1632, 12530), (1680, 12172), (1785, 11456), (1790, 11424), (1904, 10740), (2040, 10024), (2148, 9520), (2240, 9129), (2380, 8592), (2506, 8160), (2685, 7616), (2720, 7518), (2856, 7160), (2864, 7140), (3043, 6720), (3264, 6265), (3360, 6086), (3570, 5728), (3580, 5712), (3759, 5440), (3808, 5370), (4080, 5012), (4296, 4760)]