80686400

素因数分解:

$2^6\times 5^2\times {\mathrm{211}}^1\times {\mathrm{239}}^1$

素因数の和:472

約数の個数: 84

約数和(自身を含む): 200314560

約数和(自身を除く): 119628160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 211, 239, 320, 400, 422, 478, 800, 844, 956, 1055, 1195, 1600, 1688, 1912, 2110, 2390, 3376, 3824, 4220, 4780, 5275, 5975, 6752, 7648, 8440, 9560, 10550, 11950, 13504, 15296, 16880, 19120, 21100, 23900, 33760, 38240, 42200, 47800, 50429, 67520, 76480, 84400, 95600, 100858, 168800, 191200, 201716, 252145, 337600, 382400, 403432, 504290, 806864, 1008580, 1260725, 1613728, 2017160, 2521450, 3227456, 4034320, 5042900, 8068640, 10085800, 16137280, 20171600, 40343200, 80686400]

約数ペア:

[(1, 80686400), (2, 40343200), (4, 20171600), (5, 16137280), (8, 10085800), (10, 8068640), (16, 5042900), (20, 4034320), (25, 3227456), (32, 2521450), (40, 2017160), (50, 1613728), (64, 1260725), (80, 1008580), (100, 806864), (160, 504290), (200, 403432), (211, 382400), (239, 337600), (320, 252145), (400, 201716), (422, 191200), (478, 168800), (800, 100858), (844, 95600), (956, 84400), (1055, 76480), (1195, 67520), (1600, 50429), (1688, 47800), (1912, 42200), (2110, 38240), (2390, 33760), (3376, 23900), (3824, 21100), (4220, 19120), (4780, 16880), (5275, 15296), (5975, 13504), (6752, 11950), (7648, 10550), (8440, 9560)]