90518960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{161641}}^1$

素因数の和:161661

約数の個数: 40

約数和(自身を含む): 240523296

約数和(自身を除く): 150004336

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 161641, 323282, 646564, 808205, 1131487, 1293128, 1616410, 2262974, 2586256, 3232820, 4525948, 5657435, 6465640, 9051896, 11314870, 12931280, 18103792, 22629740, 45259480, 90518960]

約数ペア:

[(1, 90518960), (2, 45259480), (4, 22629740), (5, 18103792), (7, 12931280), (8, 11314870), (10, 9051896), (14, 6465640), (16, 5657435), (20, 4525948), (28, 3232820), (35, 2586256), (40, 2262974), (56, 1616410), (70, 1293128), (80, 1131487), (112, 808205), (140, 646564), (280, 323282), (560, 161641)]