18699920

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{10163}}^1$

素因数の和:10199

約数の個数: 40

約数和(自身を含む): 45372096

約数和(自身を除く): 26672176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 10163, 20326, 40652, 50815, 81304, 101630, 162608, 203260, 233749, 406520, 467498, 813040, 934996, 1168745, 1869992, 2337490, 3739984, 4674980, 9349960, 18699920]

約数ペア:

[(1, 18699920), (2, 9349960), (4, 4674980), (5, 3739984), (8, 2337490), (10, 1869992), (16, 1168745), (20, 934996), (23, 813040), (40, 467498), (46, 406520), (80, 233749), (92, 203260), (115, 162608), (184, 101630), (230, 81304), (368, 50815), (460, 40652), (920, 20326), (1840, 10163)]