30991120

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{16843}}^1$

素因数の和:16879

約数の個数: 40

約数和(自身を含む): 75191616

約数和(自身を除く): 44200496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 16843, 33686, 67372, 84215, 134744, 168430, 269488, 336860, 387389, 673720, 774778, 1347440, 1549556, 1936945, 3099112, 3873890, 6198224, 7747780, 15495560, 30991120]

約数ペア:

[(1, 30991120), (2, 15495560), (4, 7747780), (5, 6198224), (8, 3873890), (10, 3099112), (16, 1936945), (20, 1549556), (23, 1347440), (40, 774778), (46, 673720), (80, 387389), (92, 336860), (115, 269488), (184, 168430), (230, 134744), (368, 84215), (460, 67372), (920, 33686), (1840, 16843)]