18215560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41399}}^1$

素因数の和:41421

約数の個数: 32

約数和(自身を含む): 44712000

約数和(自身を除く): 26496440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 41399, 82798, 165596, 206995, 331192, 413990, 455389, 827980, 910778, 1655960, 1821556, 2276945, 3643112, 4553890, 9107780, 18215560]

約数ペア:

[(1, 18215560), (2, 9107780), (4, 4553890), (5, 3643112), (8, 2276945), (10, 1821556), (11, 1655960), (20, 910778), (22, 827980), (40, 455389), (44, 413990), (55, 331192), (88, 206995), (110, 165596), (220, 82798), (440, 41399)]