20201190890

素因数分解:

$2^1\times 5^1\times {\mathrm{811}}^1\times {\mathrm{2490899}}^1$

素因数の和:2491717

約数の個数: 16

約数和(自身を含む): 36406994400

約数和(自身を除く): 16205803510

約数列:

[1, 2, 5, 10, 811, 1622, 4055, 8110, 2490899, 4981798, 12454495, 24908990, 2020119089, 4040238178, 10100595445, 20201190890]

約数ペア:

[(1, 20201190890), (2, 10100595445), (5, 4040238178), (10, 2020119089), (811, 24908990), (1622, 12454495), (4055, 4981798), (8110, 2490899)]