64897535

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{1999}}^1$

素因数の和:2198

約数の個数: 16

約数和(自身を含む): 80256000

約数和(自身を除く): 15358465

約数列:

[1, 5, 43, 151, 215, 755, 1999, 6493, 9995, 32465, 85957, 301849, 429785, 1509245, 12979507, 64897535]

約数ペア:

[(1, 64897535), (5, 12979507), (43, 1509245), (151, 429785), (215, 301849), (755, 85957), (1999, 32465), (6493, 9995)]