80811405

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{13921}}^1$

素因数の和:13978

約数の個数: 32

約数和(自身を含む): 147016320

約数和(自身を除く): 66204915

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1935, 5805, 13921, 41763, 69605, 125289, 208815, 375867, 598603, 626445, 1795809, 1879335, 2993015, 5387427, 8979045, 16162281, 26937135, 80811405]

約数ペア:

[(1, 80811405), (3, 26937135), (5, 16162281), (9, 8979045), (15, 5387427), (27, 2993015), (43, 1879335), (45, 1795809), (129, 626445), (135, 598603), (215, 375867), (387, 208815), (645, 125289), (1161, 69605), (1935, 41763), (5805, 13921)]