20178039320

素因数分解:

$2^3\times 5^1\times {\mathrm{9739}}^1\times {\mathrm{51797}}^1$

素因数の和:61547

約数の個数: 32

約数和(自身を含む): 45406126800

約数和(自身を除く): 25228087480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9739, 19478, 38956, 48695, 51797, 77912, 97390, 103594, 194780, 207188, 258985, 389560, 414376, 517970, 1035940, 2071880, 504450983, 1008901966, 2017803932, 2522254915, 4035607864, 5044509830, 10089019660, 20178039320]

約数ペア:

[(1, 20178039320), (2, 10089019660), (4, 5044509830), (5, 4035607864), (8, 2522254915), (10, 2017803932), (20, 1008901966), (40, 504450983), (9739, 2071880), (19478, 1035940), (38956, 517970), (48695, 414376), (51797, 389560), (77912, 258985), (97390, 207188), (103594, 194780)]