68047940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:297

約数の個数: 72

約数和(自身を含む): 155089032

約数和(自身を除く): 87041092

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 61, 68, 85, 122, 170, 193, 244, 289, 305, 340, 386, 578, 610, 772, 965, 1037, 1156, 1220, 1445, 1930, 2074, 2890, 3281, 3860, 4148, 5185, 5780, 6562, 10370, 11773, 13124, 16405, 17629, 20740, 23546, 32810, 35258, 47092, 55777, 58865, 65620, 70516, 88145, 111554, 117730, 176290, 200141, 223108, 235460, 278885, 352580, 400282, 557770, 800564, 1000705, 1115540, 2001410, 3402397, 4002820, 6804794, 13609588, 17011985, 34023970, 68047940]

約数ペア:

[(1, 68047940), (2, 34023970), (4, 17011985), (5, 13609588), (10, 6804794), (17, 4002820), (20, 3402397), (34, 2001410), (61, 1115540), (68, 1000705), (85, 800564), (122, 557770), (170, 400282), (193, 352580), (244, 278885), (289, 235460), (305, 223108), (340, 200141), (386, 176290), (578, 117730), (610, 111554), (772, 88145), (965, 70516), (1037, 65620), (1156, 58865), (1220, 55777), (1445, 47092), (1930, 35258), (2074, 32810), (2890, 23546), (3281, 20740), (3860, 17629), (4148, 16405), (5185, 13124), (5780, 11773), (6562, 10370)]