8177780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{443}}^1$

素因数の和:536

約数の個数: 48

約数和(自身を含む): 18797184

約数和(自身を除く): 10619404

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 443, 710, 886, 923, 1420, 1772, 1846, 2215, 3692, 4430, 4615, 5759, 8860, 9230, 11518, 18460, 23036, 28795, 31453, 57590, 62906, 115180, 125812, 157265, 314530, 408889, 629060, 817778, 1635556, 2044445, 4088890, 8177780]

約数ペア:

[(1, 8177780), (2, 4088890), (4, 2044445), (5, 1635556), (10, 817778), (13, 629060), (20, 408889), (26, 314530), (52, 157265), (65, 125812), (71, 115180), (130, 62906), (142, 57590), (260, 31453), (284, 28795), (355, 23036), (443, 18460), (710, 11518), (886, 9230), (923, 8860), (1420, 5759), (1772, 4615), (1846, 4430), (2215, 3692)]