81424504

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{20479}}^1$

素因数の和:20563

約数の個数: 32

約数和(自身を含む): 176947200

約数和(自身を除く): 95522696

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 497, 568, 994, 1988, 3976, 20479, 40958, 81916, 143353, 163832, 286706, 573412, 1146824, 1454009, 2908018, 5816036, 10178063, 11632072, 20356126, 40712252, 81424504]

約数ペア:

[(1, 81424504), (2, 40712252), (4, 20356126), (7, 11632072), (8, 10178063), (14, 5816036), (28, 2908018), (56, 1454009), (71, 1146824), (142, 573412), (284, 286706), (497, 163832), (568, 143353), (994, 81916), (1988, 40958), (3976, 20479)]