81634240

素因数分解:

$2^6\times 5^1\times {\mathrm{255107}}^1$

素因数の和:255124

約数の個数: 28

約数和(自身を含む): 194392296

約数和(自身を除く): 112758056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 255107, 510214, 1020428, 1275535, 2040856, 2551070, 4081712, 5102140, 8163424, 10204280, 16326848, 20408560, 40817120, 81634240]

約数ペア:

[(1, 81634240), (2, 40817120), (4, 20408560), (5, 16326848), (8, 10204280), (10, 8163424), (16, 5102140), (20, 4081712), (32, 2551070), (40, 2040856), (64, 1275535), (80, 1020428), (160, 510214), (320, 255107)]