20121207440

素因数分解:

$2^4\times 5^1\times {\mathrm{251515093}}^1$

素因数の和:251515106

約数の個数: 20

約数和(自身を含む): 46781807484

約数和(自身を除く): 26660600044

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251515093, 503030186, 1006060372, 1257575465, 2012120744, 2515150930, 4024241488, 5030301860, 10060603720, 20121207440]

約数ペア:

[(1, 20121207440), (2, 10060603720), (4, 5030301860), (5, 4024241488), (8, 2515150930), (10, 2012120744), (16, 1257575465), (20, 1006060372), (40, 503030186), (80, 251515093)]