20123488100

素因数分解:

$2^2\times 5^2\times {\mathrm{3203}}^1\times {\mathrm{62827}}^1$

素因数の和:66044

約数の個数: 36

約数和(自身を含む): 43682297904

約数和(自身を除く): 23558809804

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 3203, 6406, 12812, 16015, 32030, 62827, 64060, 80075, 125654, 160150, 251308, 314135, 320300, 628270, 1256540, 1570675, 3141350, 6282700, 201234881, 402469762, 804939524, 1006174405, 2012348810, 4024697620, 5030872025, 10061744050, 20123488100]

約数ペア:

[(1, 20123488100), (2, 10061744050), (4, 5030872025), (5, 4024697620), (10, 2012348810), (20, 1006174405), (25, 804939524), (50, 402469762), (100, 201234881), (3203, 6282700), (6406, 3141350), (12812, 1570675), (16015, 1256540), (32030, 628270), (62827, 320300), (64060, 314135), (80075, 251308), (125654, 160150)]