639671110

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{271}}^2$

素因数の和:629

約数の個数: 48

約数和(自身を含む): 1263145968

約数和(自身を除く): 623474858

約数列:

[1, 2, 5, 10, 13, 26, 65, 67, 130, 134, 271, 335, 542, 670, 871, 1355, 1742, 2710, 3523, 4355, 7046, 8710, 17615, 18157, 35230, 36314, 73441, 90785, 146882, 181570, 236041, 367205, 472082, 734410, 954733, 1180205, 1909466, 2360410, 4773665, 4920547, 9547330, 9841094, 24602735, 49205470, 63967111, 127934222, 319835555, 639671110]

約数ペア:

[(1, 639671110), (2, 319835555), (5, 127934222), (10, 63967111), (13, 49205470), (26, 24602735), (65, 9841094), (67, 9547330), (130, 4920547), (134, 4773665), (271, 2360410), (335, 1909466), (542, 1180205), (670, 954733), (871, 734410), (1355, 472082), (1742, 367205), (2710, 236041), (3523, 181570), (4355, 146882), (7046, 90785), (8710, 73441), (17615, 36314), (18157, 35230)]