261105990140

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{75464159}}^1$

素因数の和:75464341

約数の個数: 24

約数和(自身を含む): 551492081280

約数和(自身を除く): 290386091140

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 75464159, 150928318, 301856636, 377320795, 754641590, 1509283180, 13055299507, 26110599014, 52221198028, 65276497535, 130552995070, 261105990140]

約数ペア:

[(1, 261105990140), (2, 130552995070), (4, 65276497535), (5, 52221198028), (10, 26110599014), (20, 13055299507), (173, 1509283180), (346, 754641590), (692, 377320795), (865, 301856636), (1730, 150928318), (3460, 75464159)]