7771660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{421}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 17865792

約数和(自身を除く): 10094132

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 421, 710, 842, 923, 1420, 1684, 1846, 2105, 3692, 4210, 4615, 5473, 8420, 9230, 10946, 18460, 21892, 27365, 29891, 54730, 59782, 109460, 119564, 149455, 298910, 388583, 597820, 777166, 1554332, 1942915, 3885830, 7771660]

約数ペア:

[(1, 7771660), (2, 3885830), (4, 1942915), (5, 1554332), (10, 777166), (13, 597820), (20, 388583), (26, 298910), (52, 149455), (65, 119564), (71, 109460), (130, 59782), (142, 54730), (260, 29891), (284, 27365), (355, 21892), (421, 18460), (710, 10946), (842, 9230), (923, 8420), (1420, 5473), (1684, 4615), (1846, 4210), (2105, 3692)]