18187390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4513}}^1$

素因数の和:4564

約数の個数: 32

約数和(自身を含む): 36400896

約数和(自身を除く): 18213506

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 4513, 9026, 22565, 45130, 58669, 117338, 139903, 279806, 293345, 586690, 699515, 1399030, 1818739, 3637478, 9093695, 18187390]

約数ペア:

[(1, 18187390), (2, 9093695), (5, 3637478), (10, 1818739), (13, 1399030), (26, 699515), (31, 586690), (62, 293345), (65, 279806), (130, 139903), (155, 117338), (310, 58669), (403, 45130), (806, 22565), (2015, 9026), (4030, 4513)]