64871210

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{72889}}^1$

素因数の和:72985

約数の個数: 16

約数和(自身を含む): 118081800

約数和(自身を除く): 53210590

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 72889, 145778, 364445, 728890, 6487121, 12974242, 32435605, 64871210]

約数ペア:

[(1, 64871210), (2, 32435605), (5, 12974242), (10, 6487121), (89, 728890), (178, 364445), (445, 145778), (890, 72889)]