1989140

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{367}}^1$

素因数の和:647

約数の個数: 24

約数和(自身を含む): 4204032

約数和(自身を除く): 2214892

約数列:

[1, 2, 4, 5, 10, 20, 271, 367, 542, 734, 1084, 1355, 1468, 1835, 2710, 3670, 5420, 7340, 99457, 198914, 397828, 497285, 994570, 1989140]

約数ペア:

[(1, 1989140), (2, 994570), (4, 497285), (5, 397828), (10, 198914), (20, 99457), (271, 7340), (367, 5420), (542, 3670), (734, 2710), (1084, 1835), (1355, 1468)]