20189170

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1439}}^1$

素因数の和:1530

約数の個数: 32

約数和(自身を含む): 38568960

約数和(自身を除く): 18379790

約数列:

[1, 2, 5, 10, 23, 46, 61, 115, 122, 230, 305, 610, 1403, 1439, 2806, 2878, 7015, 7195, 14030, 14390, 33097, 66194, 87779, 165485, 175558, 330970, 438895, 877790, 2018917, 4037834, 10094585, 20189170]

約数ペア:

[(1, 20189170), (2, 10094585), (5, 4037834), (10, 2018917), (23, 877790), (46, 438895), (61, 330970), (115, 175558), (122, 165485), (230, 87779), (305, 66194), (610, 33097), (1403, 14390), (1439, 14030), (2806, 7195), (2878, 7015)]