81891952

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{3217}}^1$

素因数の和:3305

約数の個数: 40

約数和(自身を含む): 166795376

約数和(自身を除く): 84903424

約数列:

[1, 2, 4, 8, 16, 37, 43, 74, 86, 148, 172, 296, 344, 592, 688, 1591, 3182, 3217, 6364, 6434, 12728, 12868, 25456, 25736, 51472, 119029, 138331, 238058, 276662, 476116, 553324, 952232, 1106648, 1904464, 2213296, 5118247, 10236494, 20472988, 40945976, 81891952]

約数ペア:

[(1, 81891952), (2, 40945976), (4, 20472988), (8, 10236494), (16, 5118247), (37, 2213296), (43, 1904464), (74, 1106648), (86, 952232), (148, 553324), (172, 476116), (296, 276662), (344, 238058), (592, 138331), (688, 119029), (1591, 51472), (3182, 25736), (3217, 25456), (6364, 12868), (6434, 12728)]