2017497620

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{743}}^1\times {\mathrm{991}}^1$

素因数の和:1880

約数の個数: 48

約数和(自身を含む): 4277726208

約数和(自身を除く): 2260228588

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 743, 991, 1370, 1486, 1982, 2740, 2972, 3715, 3964, 4955, 7430, 9910, 14860, 19820, 101791, 135767, 203582, 271534, 407164, 508955, 543068, 678835, 736313, 1017910, 1357670, 1472626, 2035820, 2715340, 2945252, 3681565, 7363130, 14726260, 100874881, 201749762, 403499524, 504374405, 1008748810, 2017497620]

約数ペア:

[(1, 2017497620), (2, 1008748810), (4, 504374405), (5, 403499524), (10, 201749762), (20, 100874881), (137, 14726260), (274, 7363130), (548, 3681565), (685, 2945252), (743, 2715340), (991, 2035820), (1370, 1472626), (1486, 1357670), (1982, 1017910), (2740, 736313), (2972, 678835), (3715, 543068), (3964, 508955), (4955, 407164), (7430, 271534), (9910, 203582), (14860, 135767), (19820, 101791)]