81189736

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{691}}^1\times {\mathrm{773}}^1$

素因数の和:1489

約数の個数: 32

約数和(自身を含む): 160682400

約数和(自身を除く): 79492664

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 691, 773, 1382, 1546, 2764, 3092, 5528, 6184, 13129, 14687, 26258, 29374, 52516, 58748, 105032, 117496, 534143, 1068286, 2136572, 4273144, 10148717, 20297434, 40594868, 81189736]

約数ペア:

[(1, 81189736), (2, 40594868), (4, 20297434), (8, 10148717), (19, 4273144), (38, 2136572), (76, 1068286), (152, 534143), (691, 117496), (773, 105032), (1382, 58748), (1546, 52516), (2764, 29374), (3092, 26258), (5528, 14687), (6184, 13129)]