1640245220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{487}}^1\times {\mathrm{5807}}^1$

素因数の和:6332

約数の個数: 48

約数和(自身を含む): 3571223040

約数和(自身を除く): 1930977820

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 487, 580, 974, 1948, 2435, 4870, 5807, 9740, 11614, 14123, 23228, 28246, 29035, 56492, 58070, 70615, 116140, 141230, 168403, 282460, 336806, 673612, 842015, 1684030, 2828009, 3368060, 5656018, 11312036, 14140045, 28280090, 56560180, 82012261, 164024522, 328049044, 410061305, 820122610, 1640245220]

約数ペア:

[(1, 1640245220), (2, 820122610), (4, 410061305), (5, 328049044), (10, 164024522), (20, 82012261), (29, 56560180), (58, 28280090), (116, 14140045), (145, 11312036), (290, 5656018), (487, 3368060), (580, 2828009), (974, 1684030), (1948, 842015), (2435, 673612), (4870, 336806), (5807, 282460), (9740, 168403), (11614, 141230), (14123, 116140), (23228, 70615), (28246, 58070), (29035, 56492)]