20577570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2777}}^1$

素因数の和:2819

約数の個数: 64

約数和(自身を含む): 56004480

約数和(自身を除く): 35426910

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 19, 26, 30, 38, 39, 57, 65, 78, 95, 114, 130, 190, 195, 247, 285, 390, 494, 570, 741, 1235, 1482, 2470, 2777, 3705, 5554, 7410, 8331, 13885, 16662, 27770, 36101, 41655, 52763, 72202, 83310, 105526, 108303, 158289, 180505, 216606, 263815, 316578, 361010, 527630, 541515, 685919, 791445, 1083030, 1371838, 1582890, 2057757, 3429595, 4115514, 6859190, 10288785, 20577570]

約数ペア:

[(1, 20577570), (2, 10288785), (3, 6859190), (5, 4115514), (6, 3429595), (10, 2057757), (13, 1582890), (15, 1371838), (19, 1083030), (26, 791445), (30, 685919), (38, 541515), (39, 527630), (57, 361010), (65, 316578), (78, 263815), (95, 216606), (114, 180505), (130, 158289), (190, 108303), (195, 105526), (247, 83310), (285, 72202), (390, 52763), (494, 41655), (570, 36101), (741, 27770), (1235, 16662), (1482, 13885), (2470, 8331), (2777, 7410), (3705, 5554)]