1581680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1163}}^1$

素因数の和:1193

約数の個数: 40

約数和(自身を含む): 3897072

約数和(自身を除く): 2315392

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1163, 1360, 2326, 4652, 5815, 9304, 11630, 18608, 19771, 23260, 39542, 46520, 79084, 93040, 98855, 158168, 197710, 316336, 395420, 790840, 1581680]

約数ペア:

[(1, 1581680), (2, 790840), (4, 395420), (5, 316336), (8, 197710), (10, 158168), (16, 98855), (17, 93040), (20, 79084), (34, 46520), (40, 39542), (68, 23260), (80, 19771), (85, 18608), (136, 11630), (170, 9304), (272, 5815), (340, 4652), (680, 2326), (1163, 1360)]