64740075

素因数分解:

$3^1\times 5^2\times {\mathrm{211}}^1\times {\mathrm{4091}}^1$

素因数の和:4315

約数の個数: 24

約数和(自身を含む): 107570496

約数和(自身を除く): 42830421

約数列:

[1, 3, 5, 15, 25, 75, 211, 633, 1055, 3165, 4091, 5275, 12273, 15825, 20455, 61365, 102275, 306825, 863201, 2589603, 4316005, 12948015, 21580025, 64740075]

約数ペア:

[(1, 64740075), (3, 21580025), (5, 12948015), (15, 4316005), (25, 2589603), (75, 863201), (211, 306825), (633, 102275), (1055, 61365), (3165, 20455), (4091, 15825), (5275, 12273)]