80781960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{5657}}^1$

素因数の和:5695

約数の個数: 128

約数和(自身を含む): 293310720

約数和(自身を除く): 212528760

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, 714, 840, 952, 1020, 1190, 1428, 1785, 2040, 2380, 2856, 3570, 4760, 5657, 7140, 11314, 14280, 16971, 22628, 28285, 33942, 39599, 45256, 56570, 67884, 79198, 84855, 96169, 113140, 118797, 135768, 158396, 169710, 192338, 197995, 226280, 237594, 288507, 316792, 339420, 384676, 395990, 475188, 480845, 577014, 593985, 673183, 678840, 769352, 791980, 950376, 961690, 1154028, 1187970, 1346366, 1442535, 1583960, 1923380, 2019549, 2308056, 2375940, 2692732, 2885070, 3365915, 3846760, 4039098, 4751880, 5385464, 5770140, 6731830, 8078196, 10097745, 11540280, 13463660, 16156392, 20195490, 26927320, 40390980, 80781960]

約数ペア:

[(1, 80781960), (2, 40390980), (3, 26927320), (4, 20195490), (5, 16156392), (6, 13463660), (7, 11540280), (8, 10097745), (10, 8078196), (12, 6731830), (14, 5770140), (15, 5385464), (17, 4751880), (20, 4039098), (21, 3846760), (24, 3365915), (28, 2885070), (30, 2692732), (34, 2375940), (35, 2308056), (40, 2019549), (42, 1923380), (51, 1583960), (56, 1442535), (60, 1346366), (68, 1187970), (70, 1154028), (84, 961690), (85, 950376), (102, 791980), (105, 769352), (119, 678840), (120, 673183), (136, 593985), (140, 577014), (168, 480845), (170, 475188), (204, 395990), (210, 384676), (238, 339420), (255, 316792), (280, 288507), (340, 237594), (357, 226280), (408, 197995), (420, 192338), (476, 169710), (510, 158396), (595, 135768), (680, 118797), (714, 113140), (840, 96169), (952, 84855), (1020, 79198), (1190, 67884), (1428, 56570), (1785, 45256), (2040, 39599), (2380, 33942), (2856, 28285), (3570, 22628), (4760, 16971), (5657, 14280), (7140, 11314)]