20423540

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1531}}^1$

素因数の和:1592

約数の個数: 48

約数和(自身を含む): 46327680

約数和(自身を除く): 25904140

約数列:

[1, 2, 4, 5, 10, 20, 23, 29, 46, 58, 92, 115, 116, 145, 230, 290, 460, 580, 667, 1334, 1531, 2668, 3062, 3335, 6124, 6670, 7655, 13340, 15310, 30620, 35213, 44399, 70426, 88798, 140852, 176065, 177596, 221995, 352130, 443990, 704260, 887980, 1021177, 2042354, 4084708, 5105885, 10211770, 20423540]

約数ペア:

[(1, 20423540), (2, 10211770), (4, 5105885), (5, 4084708), (10, 2042354), (20, 1021177), (23, 887980), (29, 704260), (46, 443990), (58, 352130), (92, 221995), (115, 177596), (116, 176065), (145, 140852), (230, 88798), (290, 70426), (460, 44399), (580, 35213), (667, 30620), (1334, 15310), (1531, 13340), (2668, 7655), (3062, 6670), (3335, 6124)]