313339960

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{181}}^1\times {\mathrm{383}}^1$

素因数の和:688

約数の個数: 64

約数和(自身を含む): 717050880

約数和(自身を除く): 403710920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 181, 226, 362, 383, 452, 565, 724, 766, 904, 905, 1130, 1448, 1532, 1810, 1915, 2260, 3064, 3620, 3830, 4520, 7240, 7660, 15320, 20453, 40906, 43279, 69323, 81812, 86558, 102265, 138646, 163624, 173116, 204530, 216395, 277292, 346232, 346615, 409060, 432790, 554584, 693230, 818120, 865580, 1386460, 1731160, 2772920, 7833499, 15666998, 31333996, 39167495, 62667992, 78334990, 156669980, 313339960]

約数ペア:

[(1, 313339960), (2, 156669980), (4, 78334990), (5, 62667992), (8, 39167495), (10, 31333996), (20, 15666998), (40, 7833499), (113, 2772920), (181, 1731160), (226, 1386460), (362, 865580), (383, 818120), (452, 693230), (565, 554584), (724, 432790), (766, 409060), (904, 346615), (905, 346232), (1130, 277292), (1448, 216395), (1532, 204530), (1810, 173116), (1915, 163624), (2260, 138646), (3064, 102265), (3620, 86558), (3830, 81812), (4520, 69323), (7240, 43279), (7660, 40906), (15320, 20453)]