2018481620

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{401}}^1\times {\mathrm{2309}}^1$

素因数の和:2828

約数の個数: 48

約数和(自身を含む): 4290224400

約数和(自身を除く): 2271742780

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 401, 436, 545, 802, 1090, 1604, 2005, 2180, 2309, 4010, 4618, 8020, 9236, 11545, 23090, 43709, 46180, 87418, 174836, 218545, 251681, 437090, 503362, 874180, 925909, 1006724, 1258405, 1851818, 2516810, 3703636, 4629545, 5033620, 9259090, 18518180, 100924081, 201848162, 403696324, 504620405, 1009240810, 2018481620]

約数ペア:

[(1, 2018481620), (2, 1009240810), (4, 504620405), (5, 403696324), (10, 201848162), (20, 100924081), (109, 18518180), (218, 9259090), (401, 5033620), (436, 4629545), (545, 3703636), (802, 2516810), (1090, 1851818), (1604, 1258405), (2005, 1006724), (2180, 925909), (2309, 874180), (4010, 503362), (4618, 437090), (8020, 251681), (9236, 218545), (11545, 174836), (23090, 87418), (43709, 46180)]