123778640

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67271}}^1$

素因数の和:67307

約数の個数: 40

約数和(自身を含む): 300302208

約数和(自身を除く): 176523568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 67271, 134542, 269084, 336355, 538168, 672710, 1076336, 1345420, 1547233, 2690840, 3094466, 5381680, 6188932, 7736165, 12377864, 15472330, 24755728, 30944660, 61889320, 123778640]

約数ペア:

[(1, 123778640), (2, 61889320), (4, 30944660), (5, 24755728), (8, 15472330), (10, 12377864), (16, 7736165), (20, 6188932), (23, 5381680), (40, 3094466), (46, 2690840), (80, 1547233), (92, 1345420), (115, 1076336), (184, 672710), (230, 538168), (368, 336355), (460, 269084), (920, 134542), (1840, 67271)]