66457840

素因数分解:

$2^4\times 5^1\times {\mathrm{277}}^1\times {\mathrm{2999}}^1$

素因数の和:3289

約数の個数: 40

約数和(自身を含む): 155124000

約数和(自身を除く): 88666160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 277, 554, 1108, 1385, 2216, 2770, 2999, 4432, 5540, 5998, 11080, 11996, 14995, 22160, 23992, 29990, 47984, 59980, 119960, 239920, 830723, 1661446, 3322892, 4153615, 6645784, 8307230, 13291568, 16614460, 33228920, 66457840]

約数ペア:

[(1, 66457840), (2, 33228920), (4, 16614460), (5, 13291568), (8, 8307230), (10, 6645784), (16, 4153615), (20, 3322892), (40, 1661446), (80, 830723), (277, 239920), (554, 119960), (1108, 59980), (1385, 47984), (2216, 29990), (2770, 23992), (2999, 22160), (4432, 14995), (5540, 11996), (5998, 11080)]