78509740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^4\times {\mathrm{47}}^1$

素因数の和:124

約数の個数: 60

約数和(自身を含む): 178901856

約数和(自身を除く): 100392116

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 47, 68, 85, 94, 170, 188, 235, 289, 340, 470, 578, 799, 940, 1156, 1445, 1598, 2890, 3196, 3995, 4913, 5780, 7990, 9826, 13583, 15980, 19652, 24565, 27166, 49130, 54332, 67915, 83521, 98260, 135830, 167042, 230911, 271660, 334084, 417605, 461822, 835210, 923644, 1154555, 1670420, 2309110, 3925487, 4618220, 7850974, 15701948, 19627435, 39254870, 78509740]

約数ペア:

[(1, 78509740), (2, 39254870), (4, 19627435), (5, 15701948), (10, 7850974), (17, 4618220), (20, 3925487), (34, 2309110), (47, 1670420), (68, 1154555), (85, 923644), (94, 835210), (170, 461822), (188, 417605), (235, 334084), (289, 271660), (340, 230911), (470, 167042), (578, 135830), (799, 98260), (940, 83521), (1156, 67915), (1445, 54332), (1598, 49130), (2890, 27166), (3196, 24565), (3995, 19652), (4913, 15980), (5780, 13583), (7990, 9826)]