20440915

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{419}}^1\times {\mathrm{887}}^1$

素因数の和:1322

約数の個数: 16

約数和(自身を含む): 26853120

約数和(自身を除く): 6412205

約数列:

[1, 5, 11, 55, 419, 887, 2095, 4435, 4609, 9757, 23045, 48785, 371653, 1858265, 4088183, 20440915]

約数ペア:

[(1, 20440915), (5, 4088183), (11, 1858265), (55, 371653), (419, 48785), (887, 23045), (2095, 9757), (4435, 4609)]