20010115

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{911}}^1$

素因数の和:1130

約数の個数: 16

約数和(自身を含む): 25214976

約数和(自身を除く): 5204861

約数列:

[1, 5, 23, 115, 191, 911, 955, 4393, 4555, 20953, 21965, 104765, 174001, 870005, 4002023, 20010115]

約数ペア:

[(1, 20010115), (5, 4002023), (23, 870005), (115, 174001), (191, 104765), (911, 21965), (955, 20953), (4393, 4555)]