391616180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{487}}^1\times {\mathrm{1297}}^1$

素因数の和:1824

約数の個数: 48

約数和(自身を含む): 851321856

約数和(自身を除く): 459705676

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 487, 620, 974, 1297, 1948, 2435, 2594, 4870, 5188, 6485, 9740, 12970, 15097, 25940, 30194, 40207, 60388, 75485, 80414, 150970, 160828, 201035, 301940, 402070, 631639, 804140, 1263278, 2526556, 3158195, 6316390, 12632780, 19580809, 39161618, 78323236, 97904045, 195808090, 391616180]

約数ペア:

[(1, 391616180), (2, 195808090), (4, 97904045), (5, 78323236), (10, 39161618), (20, 19580809), (31, 12632780), (62, 6316390), (124, 3158195), (155, 2526556), (310, 1263278), (487, 804140), (620, 631639), (974, 402070), (1297, 301940), (1948, 201035), (2435, 160828), (2594, 150970), (4870, 80414), (5188, 75485), (6485, 60388), (9740, 40207), (12970, 30194), (15097, 25940)]