123856640

素因数分解:

$2^8\times 5^1\times {\mathrm{96763}}^1$

素因数の和:96784

約数の個数: 36

約数和(自身を含む): 296678424

約数和(自身を除く): 172821784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 96763, 193526, 387052, 483815, 774104, 967630, 1548208, 1935260, 3096416, 3870520, 6192832, 7741040, 12385664, 15482080, 24771328, 30964160, 61928320, 123856640]

約数ペア:

[(1, 123856640), (2, 61928320), (4, 30964160), (5, 24771328), (8, 15482080), (10, 12385664), (16, 7741040), (20, 6192832), (32, 3870520), (40, 3096416), (64, 1935260), (80, 1548208), (128, 967630), (160, 774104), (256, 483815), (320, 387052), (640, 193526), (1280, 96763)]