12770140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{479}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 28385280

約数和(自身を除く): 15615140

約数列:

[1, 2, 4, 5, 10, 20, 31, 43, 62, 86, 124, 155, 172, 215, 310, 430, 479, 620, 860, 958, 1333, 1916, 2395, 2666, 4790, 5332, 6665, 9580, 13330, 14849, 20597, 26660, 29698, 41194, 59396, 74245, 82388, 102985, 148490, 205970, 296980, 411940, 638507, 1277014, 2554028, 3192535, 6385070, 12770140]

約数ペア:

[(1, 12770140), (2, 6385070), (4, 3192535), (5, 2554028), (10, 1277014), (20, 638507), (31, 411940), (43, 296980), (62, 205970), (86, 148490), (124, 102985), (155, 82388), (172, 74245), (215, 59396), (310, 41194), (430, 29698), (479, 26660), (620, 20597), (860, 14849), (958, 13330), (1333, 9580), (1916, 6665), (2395, 5332), (2666, 4790)]