492780020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{10427}}^1$

素因数の和:10592

約数の個数: 48

約数和(自身を含む): 1103699520

約数和(自身を除く): 610919500

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 139, 170, 278, 340, 556, 695, 1390, 2363, 2780, 4726, 9452, 10427, 11815, 20854, 23630, 41708, 47260, 52135, 104270, 177259, 208540, 354518, 709036, 886295, 1449353, 1772590, 2898706, 3545180, 5797412, 7246765, 14493530, 24639001, 28987060, 49278002, 98556004, 123195005, 246390010, 492780020]

約数ペア:

[(1, 492780020), (2, 246390010), (4, 123195005), (5, 98556004), (10, 49278002), (17, 28987060), (20, 24639001), (34, 14493530), (68, 7246765), (85, 5797412), (139, 3545180), (170, 2898706), (278, 1772590), (340, 1449353), (556, 886295), (695, 709036), (1390, 354518), (2363, 208540), (2780, 177259), (4726, 104270), (9452, 52135), (10427, 47260), (11815, 41708), (20854, 23630)]