1260719920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{10499}}^1$

素因数の和:10610

約数の個数: 80

約数和(自身を含む): 3124800000

約数和(自身を除く): 1864080080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 79, 80, 95, 152, 158, 190, 304, 316, 380, 395, 632, 760, 790, 1264, 1501, 1520, 1580, 3002, 3160, 6004, 6320, 7505, 10499, 12008, 15010, 20998, 24016, 30020, 41996, 52495, 60040, 83992, 104990, 120080, 167984, 199481, 209980, 398962, 419960, 797924, 829421, 839920, 997405, 1595848, 1658842, 1994810, 3191696, 3317684, 3989620, 4147105, 6635368, 7979240, 8294210, 13270736, 15758999, 15958480, 16588420, 31517998, 33176840, 63035996, 66353680, 78794995, 126071992, 157589990, 252143984, 315179980, 630359960, 1260719920]

約数ペア:

[(1, 1260719920), (2, 630359960), (4, 315179980), (5, 252143984), (8, 157589990), (10, 126071992), (16, 78794995), (19, 66353680), (20, 63035996), (38, 33176840), (40, 31517998), (76, 16588420), (79, 15958480), (80, 15758999), (95, 13270736), (152, 8294210), (158, 7979240), (190, 6635368), (304, 4147105), (316, 3989620), (380, 3317684), (395, 3191696), (632, 1994810), (760, 1658842), (790, 1595848), (1264, 997405), (1501, 839920), (1520, 829421), (1580, 797924), (3002, 419960), (3160, 398962), (6004, 209980), (6320, 199481), (7505, 167984), (10499, 120080), (12008, 104990), (15010, 83992), (20998, 60040), (24016, 52495), (30020, 41996)]