203495240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{391337}}^1$

素因数の和:391361

約数の個数: 32

約数和(自身を含む): 493085880

約数和(自身を除く): 289590640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 391337, 782674, 1565348, 1956685, 3130696, 3913370, 5087381, 7826740, 10174762, 15653480, 20349524, 25436905, 40699048, 50873810, 101747620, 203495240]

約数ペア:

[(1, 203495240), (2, 101747620), (4, 50873810), (5, 40699048), (8, 25436905), (10, 20349524), (13, 15653480), (20, 10174762), (26, 7826740), (40, 5087381), (52, 3913370), (65, 3130696), (104, 1956685), (130, 1565348), (260, 782674), (520, 391337)]