20638130

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1471}}^1$

素因数の和:1562

約数の個数: 32

約数和(自身を含む): 39426048

約数和(自身を除く): 18787918

約数列:

[1, 2, 5, 10, 23, 46, 61, 115, 122, 230, 305, 610, 1403, 1471, 2806, 2942, 7015, 7355, 14030, 14710, 33833, 67666, 89731, 169165, 179462, 338330, 448655, 897310, 2063813, 4127626, 10319065, 20638130]

約数ペア:

[(1, 20638130), (2, 10319065), (5, 4127626), (10, 2063813), (23, 897310), (46, 448655), (61, 338330), (115, 179462), (122, 169165), (230, 89731), (305, 67666), (610, 33833), (1403, 14710), (1471, 14030), (2806, 7355), (2942, 7015)]