81600740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{313849}}^1$

素因数の和:313871

約数の個数: 24

約数和(自身を含む): 184543800

約数和(自身を除く): 102943060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 313849, 627698, 1255396, 1569245, 3138490, 4080037, 6276980, 8160074, 16320148, 20400185, 40800370, 81600740]

約数ペア:

[(1, 81600740), (2, 40800370), (4, 20400185), (5, 16320148), (10, 8160074), (13, 6276980), (20, 4080037), (26, 3138490), (52, 1569245), (65, 1255396), (130, 627698), (260, 313849)]