638019512

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{115751}}^1$

素因数の和:115823

約数の個数: 32

約数和(自身を含む): 1312627680

約数和(自身を除く): 674608168

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 104, 106, 212, 424, 689, 1378, 2756, 5512, 115751, 231502, 463004, 926008, 1504763, 3009526, 6019052, 6134803, 12038104, 12269606, 24539212, 49078424, 79752439, 159504878, 319009756, 638019512]

約数ペア:

[(1, 638019512), (2, 319009756), (4, 159504878), (8, 79752439), (13, 49078424), (26, 24539212), (52, 12269606), (53, 12038104), (104, 6134803), (106, 6019052), (212, 3009526), (424, 1504763), (689, 926008), (1378, 463004), (2756, 231502), (5512, 115751)]