20128810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2311}}^1$

素因数の和:2398

約数の個数: 32

約数和(自身を含む): 39618432

約数和(自身を除く): 19489622

約数列:

[1, 2, 5, 10, 13, 26, 65, 67, 130, 134, 335, 670, 871, 1742, 2311, 4355, 4622, 8710, 11555, 23110, 30043, 60086, 150215, 154837, 300430, 309674, 774185, 1548370, 2012881, 4025762, 10064405, 20128810]

約数ペア:

[(1, 20128810), (2, 10064405), (5, 4025762), (10, 2012881), (13, 1548370), (26, 774185), (65, 309674), (67, 300430), (130, 154837), (134, 150215), (335, 60086), (670, 30043), (871, 23110), (1742, 11555), (2311, 8710), (4355, 4622)]