17279980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{283}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 37787904

約数和(自身を除く): 20507924

約数列:

[1, 2, 4, 5, 10, 20, 43, 71, 86, 142, 172, 215, 283, 284, 355, 430, 566, 710, 860, 1132, 1415, 1420, 2830, 3053, 5660, 6106, 12169, 12212, 15265, 20093, 24338, 30530, 40186, 48676, 60845, 61060, 80372, 100465, 121690, 200930, 243380, 401860, 863999, 1727998, 3455996, 4319995, 8639990, 17279980]

約数ペア:

[(1, 17279980), (2, 8639990), (4, 4319995), (5, 3455996), (10, 1727998), (20, 863999), (43, 401860), (71, 243380), (86, 200930), (142, 121690), (172, 100465), (215, 80372), (283, 61060), (284, 60845), (355, 48676), (430, 40186), (566, 30530), (710, 24338), (860, 20093), (1132, 15265), (1415, 12212), (1420, 12169), (2830, 6106), (3053, 5660)]