61388020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{2543}}^1$

素因数の和:2640

約数の個数: 48

約数和(自身を含む): 138475008

約数和(自身を除く): 77086988

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 71, 85, 142, 170, 284, 340, 355, 710, 1207, 1420, 2414, 2543, 4828, 5086, 6035, 10172, 12070, 12715, 24140, 25430, 43231, 50860, 86462, 172924, 180553, 216155, 361106, 432310, 722212, 864620, 902765, 1805530, 3069401, 3611060, 6138802, 12277604, 15347005, 30694010, 61388020]

約数ペア:

[(1, 61388020), (2, 30694010), (4, 15347005), (5, 12277604), (10, 6138802), (17, 3611060), (20, 3069401), (34, 1805530), (68, 902765), (71, 864620), (85, 722212), (142, 432310), (170, 361106), (284, 216155), (340, 180553), (355, 172924), (710, 86462), (1207, 50860), (1420, 43231), (2414, 25430), (2543, 24140), (4828, 12715), (5086, 12070), (6035, 10172)]