1631980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11657}}^1$

素因数の和:11673

約数の個数: 24

約数和(自身を含む): 3917088

約数和(自身を除く): 2285108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 11657, 23314, 46628, 58285, 81599, 116570, 163198, 233140, 326396, 407995, 815990, 1631980]

約数ペア:

[(1, 1631980), (2, 815990), (4, 407995), (5, 326396), (7, 233140), (10, 163198), (14, 116570), (20, 81599), (28, 58285), (35, 46628), (70, 23314), (140, 11657)]