81274375

素因数分解:

$5^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1429}}^1$

素因数の和:1469

約数の個数: 40

約数和(自身を含む): 125084960

約数和(自身を除く): 43810585

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 125, 175, 325, 455, 625, 875, 1429, 1625, 2275, 4375, 7145, 8125, 10003, 11375, 18577, 35725, 50015, 56875, 92885, 130039, 178625, 250075, 464425, 650195, 893125, 1250375, 2322125, 3250975, 6251875, 11610625, 16254875, 81274375]

約数ペア:

[(1, 81274375), (5, 16254875), (7, 11610625), (13, 6251875), (25, 3250975), (35, 2322125), (65, 1250375), (91, 893125), (125, 650195), (175, 464425), (325, 250075), (455, 178625), (625, 130039), (875, 92885), (1429, 56875), (1625, 50015), (2275, 35725), (4375, 18577), (7145, 11375), (8125, 10003)]