66591760

素因数分解:

$2^4\times 5^1\times {\mathrm{443}}^1\times {\mathrm{1879}}^1$

素因数の和:2335

約数の個数: 40

約数和(自身を含む): 155257920

約数和(自身を除く): 88666160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 443, 886, 1772, 1879, 2215, 3544, 3758, 4430, 7088, 7516, 8860, 9395, 15032, 17720, 18790, 30064, 35440, 37580, 75160, 150320, 832397, 1664794, 3329588, 4161985, 6659176, 8323970, 13318352, 16647940, 33295880, 66591760]

約数ペア:

[(1, 66591760), (2, 33295880), (4, 16647940), (5, 13318352), (8, 8323970), (10, 6659176), (16, 4161985), (20, 3329588), (40, 1664794), (80, 832397), (443, 150320), (886, 75160), (1772, 37580), (1879, 35440), (2215, 30064), (3544, 18790), (3758, 17720), (4430, 15032), (7088, 9395), (7516, 8860)]