20145056

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{271}}^1$

素因数の和:405

約数の個数: 48

約数和(自身を含む): 41948928

約数和(自身を除く): 21803872

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 92, 101, 184, 202, 271, 368, 404, 542, 736, 808, 1084, 1616, 2168, 2323, 3232, 4336, 4646, 6233, 8672, 9292, 12466, 18584, 24932, 27371, 37168, 49864, 54742, 74336, 99728, 109484, 199456, 218968, 437936, 629533, 875872, 1259066, 2518132, 5036264, 10072528, 20145056]

約数ペア:

[(1, 20145056), (2, 10072528), (4, 5036264), (8, 2518132), (16, 1259066), (23, 875872), (32, 629533), (46, 437936), (92, 218968), (101, 199456), (184, 109484), (202, 99728), (271, 74336), (368, 54742), (404, 49864), (542, 37168), (736, 27371), (808, 24932), (1084, 18584), (1616, 12466), (2168, 9292), (2323, 8672), (3232, 6233), (4336, 4646)]