161858984

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{40709}}^1$

素因数の和:40793

約数の個数: 32

約数和(自身を含む): 351734400

約数和(自身を除く): 189875416

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 497, 568, 994, 1988, 3976, 40709, 81418, 162836, 284963, 325672, 569926, 1139852, 2279704, 2890339, 5780678, 11561356, 20232373, 23122712, 40464746, 80929492, 161858984]

約数ペア:

[(1, 161858984), (2, 80929492), (4, 40464746), (7, 23122712), (8, 20232373), (14, 11561356), (28, 5780678), (56, 2890339), (71, 2279704), (142, 1139852), (284, 569926), (497, 325672), (568, 284963), (994, 162836), (1988, 81418), (3976, 40709)]