1901990

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4639}}^1$

素因数の和:4687

約数の個数: 16

約数和(自身を含む): 3507840

約数和(自身を除く): 1605850

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 4639, 9278, 23195, 46390, 190199, 380398, 950995, 1901990]

約数ペア:

[(1, 1901990), (2, 950995), (5, 380398), (10, 190199), (41, 46390), (82, 23195), (205, 9278), (410, 4639)]