19007380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{991}}^1$

素因数の和:1144

約数の個数: 48

約数和(自身を含む): 45997056

約数和(自身を除く): 26989676

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 137, 140, 274, 548, 685, 959, 991, 1370, 1918, 1982, 2740, 3836, 3964, 4795, 4955, 6937, 9590, 9910, 13874, 19180, 19820, 27748, 34685, 69370, 135767, 138740, 271534, 543068, 678835, 950369, 1357670, 1900738, 2715340, 3801476, 4751845, 9503690, 19007380]

約数ペア:

[(1, 19007380), (2, 9503690), (4, 4751845), (5, 3801476), (7, 2715340), (10, 1900738), (14, 1357670), (20, 950369), (28, 678835), (35, 543068), (70, 271534), (137, 138740), (140, 135767), (274, 69370), (548, 34685), (685, 27748), (959, 19820), (991, 19180), (1370, 13874), (1918, 9910), (1982, 9590), (2740, 6937), (3836, 4955), (3964, 4795)]