31957780

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{9803}}^1$

素因数の和:9975

約数の個数: 24

約数和(自身を含む): 67529952

約数和(自身を除く): 35572172

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 9803, 19606, 39212, 49015, 98030, 196060, 1597889, 3195778, 6391556, 7989445, 15978890, 31957780]

約数ペア:

[(1, 31957780), (2, 15978890), (4, 7989445), (5, 6391556), (10, 3195778), (20, 1597889), (163, 196060), (326, 98030), (652, 49015), (815, 39212), (1630, 19606), (3260, 9803)]