81827668

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{17681}}^1$

素因数の和:17787

約数の個数: 24

約数和(自身を含む): 155955240

約数和(自身を除く): 74127572

約数列:

[1, 2, 4, 13, 26, 52, 89, 178, 356, 1157, 2314, 4628, 17681, 35362, 70724, 229853, 459706, 919412, 1573609, 3147218, 6294436, 20456917, 40913834, 81827668]

約数ペア:

[(1, 81827668), (2, 40913834), (4, 20456917), (13, 6294436), (26, 3147218), (52, 1573609), (89, 919412), (178, 459706), (356, 229853), (1157, 70724), (2314, 35362), (4628, 17681)]