81364384

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{821}}^1$

素因数の和:1013

約数の個数: 48

約数和(自身を含む): 169858080

約数和(自身を除く): 88493696

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 163, 304, 326, 608, 652, 821, 1304, 1642, 2608, 3097, 3284, 5216, 6194, 6568, 12388, 13136, 15599, 24776, 26272, 31198, 49552, 62396, 99104, 124792, 133823, 249584, 267646, 499168, 535292, 1070584, 2141168, 2542637, 4282336, 5085274, 10170548, 20341096, 40682192, 81364384]

約数ペア:

[(1, 81364384), (2, 40682192), (4, 20341096), (8, 10170548), (16, 5085274), (19, 4282336), (32, 2542637), (38, 2141168), (76, 1070584), (152, 535292), (163, 499168), (304, 267646), (326, 249584), (608, 133823), (652, 124792), (821, 99104), (1304, 62396), (1642, 49552), (2608, 31198), (3097, 26272), (3284, 24776), (5216, 15599), (6194, 13136), (6568, 12388)]