217804515850

素因数分解:

$2^1\times 5^2\times {\mathrm{103}}^1\times {\mathrm{2351}}^1\times {\mathrm{17989}}^1$

素因数の和:20455

約数の個数: 48

約数和(自身を含む): 409246306560

約数和(自身を除く): 191441790710

約数列:

[1, 2, 5, 10, 25, 50, 103, 206, 515, 1030, 2351, 2575, 4702, 5150, 11755, 17989, 23510, 35978, 58775, 89945, 117550, 179890, 242153, 449725, 484306, 899450, 1210765, 1852867, 2421530, 3705734, 6053825, 9264335, 12107650, 18528670, 42292139, 46321675, 84584278, 92643350, 211460695, 422921390, 1057303475, 2114606950, 4356090317, 8712180634, 21780451585, 43560903170, 108902257925, 217804515850]

約数ペア:

[(1, 217804515850), (2, 108902257925), (5, 43560903170), (10, 21780451585), (25, 8712180634), (50, 4356090317), (103, 2114606950), (206, 1057303475), (515, 422921390), (1030, 211460695), (2351, 92643350), (2575, 84584278), (4702, 46321675), (5150, 42292139), (11755, 18528670), (17989, 12107650), (23510, 9264335), (35978, 6053825), (58775, 3705734), (89945, 2421530), (117550, 1852867), (179890, 1210765), (242153, 899450), (449725, 484306)]