142020520

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{34471}}^1$

素因数の和:34585

約数の個数: 32

約数和(自身を含む): 322657920

約数和(自身を除く): 180637400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 34471, 68942, 137884, 172355, 275768, 344710, 689420, 1378840, 3550513, 7101026, 14202052, 17752565, 28404104, 35505130, 71010260, 142020520]

約数ペア:

[(1, 142020520), (2, 71010260), (4, 35505130), (5, 28404104), (8, 17752565), (10, 14202052), (20, 7101026), (40, 3550513), (103, 1378840), (206, 689420), (412, 344710), (515, 275768), (824, 172355), (1030, 137884), (2060, 68942), (4120, 34471)]