20691190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8377}}^1$

素因数の和:8416

約数の個数: 32

約数和(自身を含む): 42225120

約数和(自身を除く): 21533930

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 8377, 16754, 41885, 83770, 108901, 159163, 217802, 318326, 544505, 795815, 1089010, 1591630, 2069119, 4138238, 10345595, 20691190]

約数ペア:

[(1, 20691190), (2, 10345595), (5, 4138238), (10, 2069119), (13, 1591630), (19, 1089010), (26, 795815), (38, 544505), (65, 318326), (95, 217802), (130, 159163), (190, 108901), (247, 83770), (494, 41885), (1235, 16754), (2470, 8377)]