87456020

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1\times {\mathrm{193}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 187078080

約数和(自身を除く): 99622060

約数列:

[1, 2, 4, 5, 10, 20, 139, 163, 193, 278, 326, 386, 556, 652, 695, 772, 815, 965, 1390, 1630, 1930, 2780, 3260, 3860, 22657, 26827, 31459, 45314, 53654, 62918, 90628, 107308, 113285, 125836, 134135, 157295, 226570, 268270, 314590, 453140, 536540, 629180, 4372801, 8745602, 17491204, 21864005, 43728010, 87456020]

約数ペア:

[(1, 87456020), (2, 43728010), (4, 21864005), (5, 17491204), (10, 8745602), (20, 4372801), (139, 629180), (163, 536540), (193, 453140), (278, 314590), (326, 268270), (386, 226570), (556, 157295), (652, 134135), (695, 125836), (772, 113285), (815, 107308), (965, 90628), (1390, 62918), (1630, 53654), (1930, 45314), (2780, 31459), (3260, 26827), (3860, 22657)]