8717820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:195

約数の個数: 96

約数和(自身を含む): 26019840

約数和(自身を除く): 17302020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 43, 60, 62, 86, 93, 109, 124, 129, 155, 172, 186, 215, 218, 258, 310, 327, 372, 430, 436, 465, 516, 545, 620, 645, 654, 860, 930, 1090, 1290, 1308, 1333, 1635, 1860, 2180, 2580, 2666, 3270, 3379, 3999, 4687, 5332, 6540, 6665, 6758, 7998, 9374, 10137, 13330, 13516, 14061, 15996, 16895, 18748, 19995, 20274, 23435, 26660, 28122, 33790, 39990, 40548, 46870, 50685, 56244, 67580, 70305, 79980, 93740, 101370, 140610, 145297, 202740, 281220, 290594, 435891, 581188, 726485, 871782, 1452970, 1743564, 2179455, 2905940, 4358910, 8717820]

約数ペア:

[(1, 8717820), (2, 4358910), (3, 2905940), (4, 2179455), (5, 1743564), (6, 1452970), (10, 871782), (12, 726485), (15, 581188), (20, 435891), (30, 290594), (31, 281220), (43, 202740), (60, 145297), (62, 140610), (86, 101370), (93, 93740), (109, 79980), (124, 70305), (129, 67580), (155, 56244), (172, 50685), (186, 46870), (215, 40548), (218, 39990), (258, 33790), (310, 28122), (327, 26660), (372, 23435), (430, 20274), (436, 19995), (465, 18748), (516, 16895), (545, 15996), (620, 14061), (645, 13516), (654, 13330), (860, 10137), (930, 9374), (1090, 7998), (1290, 6758), (1308, 6665), (1333, 6540), (1635, 5332), (1860, 4687), (2180, 3999), (2580, 3379), (2666, 3270)]