420879455

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{1999}}^1\times {\mathrm{2477}}^1$

素因数の和:4498

約数の個数: 16

約数和(自身を含む): 535248000

約数和(自身を除く): 114368545

約数列:

[1, 5, 17, 85, 1999, 2477, 9995, 12385, 33983, 42109, 169915, 210545, 4951523, 24757615, 84175891, 420879455]

約数ペア:

[(1, 420879455), (5, 84175891), (17, 24757615), (85, 4951523), (1999, 210545), (2477, 169915), (9995, 42109), (12385, 33983)]