64486360

素因数分解:

$2^3\times 5^1\times {\mathrm{1021}}^1\times {\mathrm{1579}}^1$

素因数の和:2611

約数の個数: 32

約数和(自身を含む): 145328400

約数和(自身を除く): 80842040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1021, 1579, 2042, 3158, 4084, 5105, 6316, 7895, 8168, 10210, 12632, 15790, 20420, 31580, 40840, 63160, 1612159, 3224318, 6448636, 8060795, 12897272, 16121590, 32243180, 64486360]

約数ペア:

[(1, 64486360), (2, 32243180), (4, 16121590), (5, 12897272), (8, 8060795), (10, 6448636), (20, 3224318), (40, 1612159), (1021, 63160), (1579, 40840), (2042, 31580), (3158, 20420), (4084, 15790), (5105, 12632), (6316, 10210), (7895, 8168)]