28248560

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20771}}^1$

素因数の和:20801

約数の個数: 40

約数和(自身を含む): 69544656

約数和(自身を除く): 41296096

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 20771, 41542, 83084, 103855, 166168, 207710, 332336, 353107, 415420, 706214, 830840, 1412428, 1661680, 1765535, 2824856, 3531070, 5649712, 7062140, 14124280, 28248560]

約数ペア:

[(1, 28248560), (2, 14124280), (4, 7062140), (5, 5649712), (8, 3531070), (10, 2824856), (16, 1765535), (17, 1661680), (20, 1412428), (34, 830840), (40, 706214), (68, 415420), (80, 353107), (85, 332336), (136, 207710), (170, 166168), (272, 103855), (340, 83084), (680, 41542), (1360, 20771)]