155109160

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{499}}^1$

素因数の和:938

約数の個数: 64

約数和(自身を含む): 369000000

約数和(自身を除く): 213890840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 409, 499, 760, 818, 998, 1636, 1996, 2045, 2495, 3272, 3992, 4090, 4990, 7771, 8180, 9481, 9980, 15542, 16360, 18962, 19960, 31084, 37924, 38855, 47405, 62168, 75848, 77710, 94810, 155420, 189620, 204091, 310840, 379240, 408182, 816364, 1020455, 1632728, 2040910, 3877729, 4081820, 7755458, 8163640, 15510916, 19388645, 31021832, 38777290, 77554580, 155109160]

約数ペア:

[(1, 155109160), (2, 77554580), (4, 38777290), (5, 31021832), (8, 19388645), (10, 15510916), (19, 8163640), (20, 7755458), (38, 4081820), (40, 3877729), (76, 2040910), (95, 1632728), (152, 1020455), (190, 816364), (380, 408182), (409, 379240), (499, 310840), (760, 204091), (818, 189620), (998, 155420), (1636, 94810), (1996, 77710), (2045, 75848), (2495, 62168), (3272, 47405), (3992, 38855), (4090, 37924), (4990, 31084), (7771, 19960), (8180, 18962), (9481, 16360), (9980, 15542)]