18720570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:156

約数の個数: 128

約数和(自身を含む): 53747712

約数和(自身を除く): 35027142

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 17, 22, 30, 33, 34, 47, 51, 55, 66, 71, 85, 94, 102, 110, 141, 142, 165, 170, 187, 213, 235, 255, 282, 330, 355, 374, 426, 470, 510, 517, 561, 705, 710, 781, 799, 935, 1034, 1065, 1122, 1207, 1410, 1551, 1562, 1598, 1870, 2130, 2343, 2397, 2414, 2585, 2805, 3102, 3337, 3621, 3905, 3995, 4686, 4794, 5170, 5610, 6035, 6674, 7242, 7755, 7810, 7990, 8789, 10011, 11715, 11985, 12070, 13277, 15510, 16685, 17578, 18105, 20022, 23430, 23970, 26367, 26554, 33370, 36210, 36707, 39831, 43945, 50055, 52734, 56729, 66385, 73414, 79662, 87890, 100110, 110121, 113458, 131835, 132770, 170187, 183535, 199155, 220242, 263670, 283645, 340374, 367070, 398310, 550605, 567290, 624019, 850935, 1101210, 1248038, 1701870, 1872057, 3120095, 3744114, 6240190, 9360285, 18720570]

約数ペア:

[(1, 18720570), (2, 9360285), (3, 6240190), (5, 3744114), (6, 3120095), (10, 1872057), (11, 1701870), (15, 1248038), (17, 1101210), (22, 850935), (30, 624019), (33, 567290), (34, 550605), (47, 398310), (51, 367070), (55, 340374), (66, 283645), (71, 263670), (85, 220242), (94, 199155), (102, 183535), (110, 170187), (141, 132770), (142, 131835), (165, 113458), (170, 110121), (187, 100110), (213, 87890), (235, 79662), (255, 73414), (282, 66385), (330, 56729), (355, 52734), (374, 50055), (426, 43945), (470, 39831), (510, 36707), (517, 36210), (561, 33370), (705, 26554), (710, 26367), (781, 23970), (799, 23430), (935, 20022), (1034, 18105), (1065, 17578), (1122, 16685), (1207, 15510), (1410, 13277), (1551, 12070), (1562, 11985), (1598, 11715), (1870, 10011), (2130, 8789), (2343, 7990), (2397, 7810), (2414, 7755), (2585, 7242), (2805, 6674), (3102, 6035), (3337, 5610), (3621, 5170), (3905, 4794), (3995, 4686)]