16642040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{13421}}^1$

素因数の和:13463

約数の個数: 32

約数和(自身を含む): 38655360

約数和(自身を除く): 22013320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 13421, 26842, 53684, 67105, 107368, 134210, 268420, 416051, 536840, 832102, 1664204, 2080255, 3328408, 4160510, 8321020, 16642040]

約数ペア:

[(1, 16642040), (2, 8321020), (4, 4160510), (5, 3328408), (8, 2080255), (10, 1664204), (20, 832102), (31, 536840), (40, 416051), (62, 268420), (124, 134210), (155, 107368), (248, 67105), (310, 53684), (620, 26842), (1240, 13421)]