12218960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{379}}^1$

素因数の和:436

約数の個数: 80

約数和(自身を含む): 31664640

約数和(自身を除く): 19445680

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 379, 403, 496, 520, 620, 758, 806, 1040, 1240, 1516, 1612, 1895, 2015, 2480, 3032, 3224, 3790, 4030, 4927, 6064, 6448, 7580, 8060, 9854, 11749, 15160, 16120, 19708, 23498, 24635, 30320, 32240, 39416, 46996, 49270, 58745, 78832, 93992, 98540, 117490, 152737, 187984, 197080, 234980, 305474, 394160, 469960, 610948, 763685, 939920, 1221896, 1527370, 2443792, 3054740, 6109480, 12218960]

約数ペア:

[(1, 12218960), (2, 6109480), (4, 3054740), (5, 2443792), (8, 1527370), (10, 1221896), (13, 939920), (16, 763685), (20, 610948), (26, 469960), (31, 394160), (40, 305474), (52, 234980), (62, 197080), (65, 187984), (80, 152737), (104, 117490), (124, 98540), (130, 93992), (155, 78832), (208, 58745), (248, 49270), (260, 46996), (310, 39416), (379, 32240), (403, 30320), (496, 24635), (520, 23498), (620, 19708), (758, 16120), (806, 15160), (1040, 11749), (1240, 9854), (1516, 8060), (1612, 7580), (1895, 6448), (2015, 6064), (2480, 4927), (3032, 4030), (3224, 3790)]