78429025

素因数分解:

$5^2\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{349}}^1$

素因数の和:549

約数の個数: 24

約数和(自身を含む): 99603000

約数和(自身を除く): 21173975

約数列:

[1, 5, 25, 89, 101, 349, 445, 505, 1745, 2225, 2525, 8725, 8989, 31061, 35249, 44945, 155305, 176245, 224725, 776525, 881225, 3137161, 15685805, 78429025]

約数ペア:

[(1, 78429025), (5, 15685805), (25, 3137161), (89, 881225), (101, 776525), (349, 224725), (445, 176245), (505, 155305), (1745, 44945), (2225, 35249), (2525, 31061), (8725, 8989)]