20110625

素因数分解:

$5^4\times {\mathrm{23}}^1\times {\mathrm{1399}}^1$

素因数の和:1442

約数の個数: 20

約数和(自身を含む): 26241600

約数和(自身を除く): 6130975

約数列:

[1, 5, 23, 25, 115, 125, 575, 625, 1399, 2875, 6995, 14375, 32177, 34975, 160885, 174875, 804425, 874375, 4022125, 20110625]

約数ペア:

[(1, 20110625), (5, 4022125), (23, 874375), (25, 804425), (115, 174875), (125, 160885), (575, 34975), (625, 32177), (1399, 14375), (2875, 6995)]