123165740

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{569}}^1$

素因数の和:794

約数の個数: 48

約数和(自身を含む): 264297600

約数和(自身を除く): 141131860

約数列:

[1, 2, 4, 5, 10, 20, 79, 137, 158, 274, 316, 395, 548, 569, 685, 790, 1138, 1370, 1580, 2276, 2740, 2845, 5690, 10823, 11380, 21646, 43292, 44951, 54115, 77953, 89902, 108230, 155906, 179804, 216460, 224755, 311812, 389765, 449510, 779530, 899020, 1559060, 6158287, 12316574, 24633148, 30791435, 61582870, 123165740]

約数ペア:

[(1, 123165740), (2, 61582870), (4, 30791435), (5, 24633148), (10, 12316574), (20, 6158287), (79, 1559060), (137, 899020), (158, 779530), (274, 449510), (316, 389765), (395, 311812), (548, 224755), (569, 216460), (685, 179804), (790, 155906), (1138, 108230), (1370, 89902), (1580, 77953), (2276, 54115), (2740, 44951), (2845, 43292), (5690, 21646), (10823, 11380)]