80856800

素因数分解:

$2^5\times 5^2\times {\mathrm{53}}^1\times {\mathrm{1907}}^1$

素因数の和:1980

約数の個数: 72

約数和(自身を含む): 201221496

約数和(自身を除く): 120364696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 53, 80, 100, 106, 160, 200, 212, 265, 400, 424, 530, 800, 848, 1060, 1325, 1696, 1907, 2120, 2650, 3814, 4240, 5300, 7628, 8480, 9535, 10600, 15256, 19070, 21200, 30512, 38140, 42400, 47675, 61024, 76280, 95350, 101071, 152560, 190700, 202142, 305120, 381400, 404284, 505355, 762800, 808568, 1010710, 1525600, 1617136, 2021420, 2526775, 3234272, 4042840, 5053550, 8085680, 10107100, 16171360, 20214200, 40428400, 80856800]

約数ペア:

[(1, 80856800), (2, 40428400), (4, 20214200), (5, 16171360), (8, 10107100), (10, 8085680), (16, 5053550), (20, 4042840), (25, 3234272), (32, 2526775), (40, 2021420), (50, 1617136), (53, 1525600), (80, 1010710), (100, 808568), (106, 762800), (160, 505355), (200, 404284), (212, 381400), (265, 305120), (400, 202142), (424, 190700), (530, 152560), (800, 101071), (848, 95350), (1060, 76280), (1325, 61024), (1696, 47675), (1907, 42400), (2120, 38140), (2650, 30512), (3814, 21200), (4240, 19070), (5300, 15256), (7628, 10600), (8480, 9535)]