99707480

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{227}}^1$

素因数の和:456

約数の個数: 64

約数和(自身を含む): 229824000

約数和(自身を除く): 130116520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 139, 158, 227, 278, 316, 395, 454, 556, 632, 695, 790, 908, 1112, 1135, 1390, 1580, 1816, 2270, 2780, 3160, 4540, 5560, 9080, 10981, 17933, 21962, 31553, 35866, 43924, 54905, 63106, 71732, 87848, 89665, 109810, 126212, 143464, 157765, 179330, 219620, 252424, 315530, 358660, 439240, 631060, 717320, 1262120, 2492687, 4985374, 9970748, 12463435, 19941496, 24926870, 49853740, 99707480]

約数ペア:

[(1, 99707480), (2, 49853740), (4, 24926870), (5, 19941496), (8, 12463435), (10, 9970748), (20, 4985374), (40, 2492687), (79, 1262120), (139, 717320), (158, 631060), (227, 439240), (278, 358660), (316, 315530), (395, 252424), (454, 219620), (556, 179330), (632, 157765), (695, 143464), (790, 126212), (908, 109810), (1112, 89665), (1135, 87848), (1390, 71732), (1580, 63106), (1816, 54905), (2270, 43924), (2780, 35866), (3160, 31553), (4540, 21962), (5560, 17933), (9080, 10981)]