138866720

素因数分解:

$2^5\times 5^1\times {\mathrm{449}}^1\times {\mathrm{1933}}^1$

素因数の和:2397

約数の個数: 48

約数和(自身を含む): 328973400

約数和(自身を除く): 190106680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 449, 898, 1796, 1933, 2245, 3592, 3866, 4490, 7184, 7732, 8980, 9665, 14368, 15464, 17960, 19330, 30928, 35920, 38660, 61856, 71840, 77320, 154640, 309280, 867917, 1735834, 3471668, 4339585, 6943336, 8679170, 13886672, 17358340, 27773344, 34716680, 69433360, 138866720]

約数ペア:

[(1, 138866720), (2, 69433360), (4, 34716680), (5, 27773344), (8, 17358340), (10, 13886672), (16, 8679170), (20, 6943336), (32, 4339585), (40, 3471668), (80, 1735834), (160, 867917), (449, 309280), (898, 154640), (1796, 77320), (1933, 71840), (2245, 61856), (3592, 38660), (3866, 35920), (4490, 30928), (7184, 19330), (7732, 17960), (8980, 15464), (9665, 14368)]