7790120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:306

約数の個数: 64

約数和(自身を含む): 19232640

約数和(自身を除く): 11442520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 71, 104, 130, 142, 211, 260, 284, 355, 422, 520, 568, 710, 844, 923, 1055, 1420, 1688, 1846, 2110, 2743, 2840, 3692, 4220, 4615, 5486, 7384, 8440, 9230, 10972, 13715, 14981, 18460, 21944, 27430, 29962, 36920, 54860, 59924, 74905, 109720, 119848, 149810, 194753, 299620, 389506, 599240, 779012, 973765, 1558024, 1947530, 3895060, 7790120]

約数ペア:

[(1, 7790120), (2, 3895060), (4, 1947530), (5, 1558024), (8, 973765), (10, 779012), (13, 599240), (20, 389506), (26, 299620), (40, 194753), (52, 149810), (65, 119848), (71, 109720), (104, 74905), (130, 59924), (142, 54860), (211, 36920), (260, 29962), (284, 27430), (355, 21944), (422, 18460), (520, 14981), (568, 13715), (710, 10972), (844, 9230), (923, 8440), (1055, 7384), (1420, 5486), (1688, 4615), (1846, 4220), (2110, 3692), (2743, 2840)]