199928690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{281}}^1\times {\mathrm{421}}^1$

素因数の和:735

約数の個数: 48

約数和(自身を含む): 391999176

約数和(自身を除く): 192070486

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 281, 338, 421, 562, 842, 845, 1405, 1690, 2105, 2810, 3653, 4210, 5473, 7306, 10946, 18265, 27365, 36530, 47489, 54730, 71149, 94978, 118301, 142298, 236602, 237445, 355745, 474890, 591505, 711490, 1183010, 1537913, 3075826, 7689565, 15379130, 19992869, 39985738, 99964345, 199928690]

約数ペア:

[(1, 199928690), (2, 99964345), (5, 39985738), (10, 19992869), (13, 15379130), (26, 7689565), (65, 3075826), (130, 1537913), (169, 1183010), (281, 711490), (338, 591505), (421, 474890), (562, 355745), (842, 237445), (845, 236602), (1405, 142298), (1690, 118301), (2105, 94978), (2810, 71149), (3653, 54730), (4210, 47489), (5473, 36530), (7306, 27365), (10946, 18265)]