20290180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{719}}^1$

素因数の和:828

約数の個数: 48

約数和(自身を含む): 45722880

約数和(自身を除く): 25432700

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 83, 85, 166, 170, 332, 340, 415, 719, 830, 1411, 1438, 1660, 2822, 2876, 3595, 5644, 7055, 7190, 12223, 14110, 14380, 24446, 28220, 48892, 59677, 61115, 119354, 122230, 238708, 244460, 298385, 596770, 1014509, 1193540, 2029018, 4058036, 5072545, 10145090, 20290180]

約数ペア:

[(1, 20290180), (2, 10145090), (4, 5072545), (5, 4058036), (10, 2029018), (17, 1193540), (20, 1014509), (34, 596770), (68, 298385), (83, 244460), (85, 238708), (166, 122230), (170, 119354), (332, 61115), (340, 59677), (415, 48892), (719, 28220), (830, 24446), (1411, 14380), (1438, 14110), (1660, 12223), (2822, 7190), (2876, 7055), (3595, 5644)]