39665840

素因数分解:

$2^4\times 5^1\times {\mathrm{167}}^1\times {\mathrm{2969}}^1$

素因数の和:3149

約数の個数: 40

約数和(自身を含む): 92806560

約数和(自身を除く): 53140720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 167, 334, 668, 835, 1336, 1670, 2672, 2969, 3340, 5938, 6680, 11876, 13360, 14845, 23752, 29690, 47504, 59380, 118760, 237520, 495823, 991646, 1983292, 2479115, 3966584, 4958230, 7933168, 9916460, 19832920, 39665840]

約数ペア:

[(1, 39665840), (2, 19832920), (4, 9916460), (5, 7933168), (8, 4958230), (10, 3966584), (16, 2479115), (20, 1983292), (40, 991646), (80, 495823), (167, 237520), (334, 118760), (668, 59380), (835, 47504), (1336, 29690), (1670, 23752), (2672, 14845), (2969, 13360), (3340, 11876), (5938, 6680)]