81984875

素因数分解:

$5^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2179}}^1$

素因数の和:2244

約数の個数: 32

約数和(自身を含む): 119708160

約数和(自身を除く): 37723285

約数列:

[1, 5, 7, 25, 35, 43, 125, 175, 215, 301, 875, 1075, 1505, 2179, 5375, 7525, 10895, 15253, 37625, 54475, 76265, 93697, 272375, 381325, 468485, 655879, 1906625, 2342425, 3279395, 11712125, 16396975, 81984875]

約数ペア:

[(1, 81984875), (5, 16396975), (7, 11712125), (25, 3279395), (35, 2342425), (43, 1906625), (125, 655879), (175, 468485), (215, 381325), (301, 272375), (875, 93697), (1075, 76265), (1505, 54475), (2179, 37625), (5375, 15253), (7525, 10895)]