64081975

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{619}}^1$

素因数の和:771

約数の個数: 24

約数和(自身を含む): 82338480

約数和(自身を除く): 18256505

約数列:

[1, 5, 25, 41, 101, 205, 505, 619, 1025, 2525, 3095, 4141, 15475, 20705, 25379, 62519, 103525, 126895, 312595, 634475, 1562975, 2563279, 12816395, 64081975]

約数ペア:

[(1, 64081975), (5, 12816395), (25, 2563279), (41, 1562975), (101, 634475), (205, 312595), (505, 126895), (619, 103525), (1025, 62519), (2525, 25379), (3095, 20705), (4141, 15475)]