28520920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1069}}^1$

素因数の和:1132

約数の個数: 64

約数和(自身を含む): 69336000

約数和(自身を除く): 40815080

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 29, 40, 46, 58, 92, 115, 116, 145, 184, 230, 232, 290, 460, 580, 667, 920, 1069, 1160, 1334, 2138, 2668, 3335, 4276, 5336, 5345, 6670, 8552, 10690, 13340, 21380, 24587, 26680, 31001, 42760, 49174, 62002, 98348, 122935, 124004, 155005, 196696, 245870, 248008, 310010, 491740, 620020, 713023, 983480, 1240040, 1426046, 2852092, 3565115, 5704184, 7130230, 14260460, 28520920]

約数ペア:

[(1, 28520920), (2, 14260460), (4, 7130230), (5, 5704184), (8, 3565115), (10, 2852092), (20, 1426046), (23, 1240040), (29, 983480), (40, 713023), (46, 620020), (58, 491740), (92, 310010), (115, 248008), (116, 245870), (145, 196696), (184, 155005), (230, 124004), (232, 122935), (290, 98348), (460, 62002), (580, 49174), (667, 42760), (920, 31001), (1069, 26680), (1160, 24587), (1334, 21380), (2138, 13340), (2668, 10690), (3335, 8552), (4276, 6670), (5336, 5345)]