781240239

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{80449}}^1$

素因数の和:80551

約数の個数: 24

約数和(自身を含む): 1229919600

約数和(自身を除く): 448679361

約数列:

[1, 3, 9, 13, 39, 83, 117, 249, 747, 1079, 3237, 9711, 80449, 241347, 724041, 1045837, 3137511, 6677267, 9412533, 20031801, 60095403, 86804471, 260413413, 781240239]

約数ペア:

[(1, 781240239), (3, 260413413), (9, 86804471), (13, 60095403), (39, 20031801), (83, 9412533), (117, 6677267), (249, 3137511), (747, 1045837), (1079, 724041), (3237, 241347), (9711, 80449)]