20197888

素因数分解:

$2^9\times {\mathrm{103}}^1\times {\mathrm{383}}^1$

素因数の和:504

約数の個数: 40

約数和(自身を含む): 40854528

約数和(自身を除く): 20656640

約数列:

[1, 2, 4, 8, 16, 32, 64, 103, 128, 206, 256, 383, 412, 512, 766, 824, 1532, 1648, 3064, 3296, 6128, 6592, 12256, 13184, 24512, 26368, 39449, 49024, 52736, 78898, 98048, 157796, 196096, 315592, 631184, 1262368, 2524736, 5049472, 10098944, 20197888]

約数ペア:

[(1, 20197888), (2, 10098944), (4, 5049472), (8, 2524736), (16, 1262368), (32, 631184), (64, 315592), (103, 196096), (128, 157796), (206, 98048), (256, 78898), (383, 52736), (412, 49024), (512, 39449), (766, 26368), (824, 24512), (1532, 13184), (1648, 12256), (3064, 6592), (3296, 6128)]