407657960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{487}}^1\times {\mathrm{1231}}^1$

素因数の和:1746

約数の個数: 64

約数和(自身を含む): 973969920

約数和(自身を除く): 566311960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 487, 680, 974, 1231, 1948, 2435, 2462, 3896, 4870, 4924, 6155, 8279, 9740, 9848, 12310, 16558, 19480, 20927, 24620, 33116, 41395, 41854, 49240, 66232, 82790, 83708, 104635, 165580, 167416, 209270, 331160, 418540, 599497, 837080, 1198994, 2397988, 2997485, 4795976, 5994970, 10191449, 11989940, 20382898, 23979880, 40765796, 50957245, 81531592, 101914490, 203828980, 407657960]

約数ペア:

[(1, 407657960), (2, 203828980), (4, 101914490), (5, 81531592), (8, 50957245), (10, 40765796), (17, 23979880), (20, 20382898), (34, 11989940), (40, 10191449), (68, 5994970), (85, 4795976), (136, 2997485), (170, 2397988), (340, 1198994), (487, 837080), (680, 599497), (974, 418540), (1231, 331160), (1948, 209270), (2435, 167416), (2462, 165580), (3896, 104635), (4870, 83708), (4924, 82790), (6155, 66232), (8279, 49240), (9740, 41854), (9848, 41395), (12310, 33116), (16558, 24620), (19480, 20927)]