20800316

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{499}}^1\times {\mathrm{613}}^1$

素因数の和:1133

約数の個数: 24

約数和(自身を含む): 38682000

約数和(自身を除く): 17881684

約数列:

[1, 2, 4, 17, 34, 68, 499, 613, 998, 1226, 1996, 2452, 8483, 10421, 16966, 20842, 33932, 41684, 305887, 611774, 1223548, 5200079, 10400158, 20800316]

約数ペア:

[(1, 20800316), (2, 10400158), (4, 5200079), (17, 1223548), (34, 611774), (68, 305887), (499, 41684), (613, 33932), (998, 20842), (1226, 16966), (1996, 10421), (2452, 8483)]