81045580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{52627}}^1$

素因数の和:52654

約数の個数: 48

約数和(自身を含む): 212196096

約数和(自身を除く): 131150516

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 52627, 105254, 210508, 263135, 368389, 526270, 578897, 736778, 1052540, 1157794, 1473556, 1841945, 2315588, 2894485, 3683890, 4052279, 5788970, 7367780, 8104558, 11577940, 16209116, 20261395, 40522790, 81045580]

約数ペア:

[(1, 81045580), (2, 40522790), (4, 20261395), (5, 16209116), (7, 11577940), (10, 8104558), (11, 7367780), (14, 5788970), (20, 4052279), (22, 3683890), (28, 2894485), (35, 2315588), (44, 1841945), (55, 1473556), (70, 1157794), (77, 1052540), (110, 736778), (140, 578897), (154, 526270), (220, 368389), (308, 263135), (385, 210508), (770, 105254), (1540, 52627)]