251018128

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{155333}}^1$

素因数の和:155442

約数の個数: 20

約数和(自身を含む): 491166108

約数和(自身を除く): 240147980

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 155333, 310666, 621332, 1242664, 2485328, 15688633, 31377266, 62754532, 125509064, 251018128]

約数ペア:

[(1, 251018128), (2, 125509064), (4, 62754532), (8, 31377266), (16, 15688633), (101, 2485328), (202, 1242664), (404, 621332), (808, 310666), (1616, 155333)]