201220990

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{2113}}^1$

素因数の和:2316

約数の個数: 32

約数和(自身を含む): 369865440

約数和(自身を除く): 168644450

約数列:

[1, 2, 5, 10, 89, 107, 178, 214, 445, 535, 890, 1070, 2113, 4226, 9523, 10565, 19046, 21130, 47615, 95230, 188057, 226091, 376114, 452182, 940285, 1130455, 1880570, 2260910, 20122099, 40244198, 100610495, 201220990]

約数ペア:

[(1, 201220990), (2, 100610495), (5, 40244198), (10, 20122099), (89, 2260910), (107, 1880570), (178, 1130455), (214, 940285), (445, 452182), (535, 376114), (890, 226091), (1070, 188057), (2113, 95230), (4226, 47615), (9523, 21130), (10565, 19046)]