20278315780

素因数分解:

$2^2\times 5^1\times {\mathrm{62131}}^1\times {\mathrm{16319}}^1$

素因数の和:78459

約数の個数: 24

約数和(自身を含む): 42587758080

約数和(自身を除く): 22309442300

約数列:

[1, 2, 4, 5, 10, 20, 16319, 32638, 62131, 65276, 81595, 124262, 163190, 248524, 310655, 326380, 621310, 1242620, 1013915789, 2027831578, 4055663156, 5069578945, 10139157890, 20278315780]

約数ペア:

[(1, 20278315780), (2, 10139157890), (4, 5069578945), (5, 4055663156), (10, 2027831578), (20, 1013915789), (16319, 1242620), (32638, 621310), (62131, 326380), (65276, 310655), (81595, 248524), (124262, 163190)]