20710232

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{37}}^2\times {\mathrm{61}}^1$

素因数の和:172

約数の個数: 48

約数和(自身を含む): 41872320

約数和(自身を除く): 21162088

約数列:

[1, 2, 4, 8, 31, 37, 61, 62, 74, 122, 124, 148, 244, 248, 296, 488, 1147, 1369, 1891, 2257, 2294, 2738, 3782, 4514, 4588, 5476, 7564, 9028, 9176, 10952, 15128, 18056, 42439, 69967, 83509, 84878, 139934, 167018, 169756, 279868, 334036, 339512, 559736, 668072, 2588779, 5177558, 10355116, 20710232]

約数ペア:

[(1, 20710232), (2, 10355116), (4, 5177558), (8, 2588779), (31, 668072), (37, 559736), (61, 339512), (62, 334036), (74, 279868), (122, 169756), (124, 167018), (148, 139934), (244, 84878), (248, 83509), (296, 69967), (488, 42439), (1147, 18056), (1369, 15128), (1891, 10952), (2257, 9176), (2294, 9028), (2738, 7564), (3782, 5476), (4514, 4588)]