400018025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{50159}}^1$

素因数の和:50209

約数の個数: 24

約数和(自身を含む): 559785600

約数和(自身を除く): 159767575

約数列:

[1, 5, 11, 25, 29, 55, 145, 275, 319, 725, 1595, 7975, 50159, 250795, 551749, 1253975, 1454611, 2758745, 7273055, 13793725, 16000721, 36365275, 80003605, 400018025]

約数ペア:

[(1, 400018025), (5, 80003605), (11, 36365275), (25, 16000721), (29, 13793725), (55, 7273055), (145, 2758745), (275, 1454611), (319, 1253975), (725, 551749), (1595, 250795), (7975, 50159)]