19877490

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{220861}}^1$

素因数の和:220874

約数の個数: 24

約数和(自身を含む): 51681708

約数和(自身を除く): 31804218

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 220861, 441722, 662583, 1104305, 1325166, 1987749, 2208610, 3312915, 3975498, 6625830, 9938745, 19877490]

約数ペア:

[(1, 19877490), (2, 9938745), (3, 6625830), (5, 3975498), (6, 3312915), (9, 2208610), (10, 1987749), (15, 1325166), (18, 1104305), (30, 662583), (45, 441722), (90, 220861)]