311307960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{60331}}^1$

素因数の和:60388

約数の個数: 64

約数和(自身を含む): 955658880

約数和(自身を除く): 644350920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 2580, 5160, 60331, 120662, 180993, 241324, 301655, 361986, 482648, 603310, 723972, 904965, 1206620, 1447944, 1809930, 2413240, 2594233, 3619860, 5188466, 7239720, 7782699, 10376932, 12971165, 15565398, 20753864, 25942330, 31130796, 38913495, 51884660, 62261592, 77826990, 103769320, 155653980, 311307960]

約数ペア:

[(1, 311307960), (2, 155653980), (3, 103769320), (4, 77826990), (5, 62261592), (6, 51884660), (8, 38913495), (10, 31130796), (12, 25942330), (15, 20753864), (20, 15565398), (24, 12971165), (30, 10376932), (40, 7782699), (43, 7239720), (60, 5188466), (86, 3619860), (120, 2594233), (129, 2413240), (172, 1809930), (215, 1447944), (258, 1206620), (344, 904965), (430, 723972), (516, 603310), (645, 482648), (860, 361986), (1032, 301655), (1290, 241324), (1720, 180993), (2580, 120662), (5160, 60331)]