201225680

素因数分解:

$2^4\times 5^1\times {\mathrm{2515321}}^1$

素因数の和:2515334

約数の個数: 20

約数和(自身を含む): 467849892

約数和(自身を除く): 266624212

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2515321, 5030642, 10061284, 12576605, 20122568, 25153210, 40245136, 50306420, 100612840, 201225680]

約数ペア:

[(1, 201225680), (2, 100612840), (4, 50306420), (5, 40245136), (8, 25153210), (10, 20122568), (16, 12576605), (20, 10061284), (40, 5030642), (80, 2515321)]