12484865720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{7612723}}^1$

素因数の和:7612775

約数の個数: 32

約数和(自身を含む): 28776096720

約数和(自身を除く): 16291231000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 7612723, 15225446, 30450892, 38063615, 60901784, 76127230, 152254460, 304508920, 312121643, 624243286, 1248486572, 1560608215, 2496973144, 3121216430, 6242432860, 12484865720]

約数ペア:

[(1, 12484865720), (2, 6242432860), (4, 3121216430), (5, 2496973144), (8, 1560608215), (10, 1248486572), (20, 624243286), (40, 312121643), (41, 304508920), (82, 152254460), (164, 76127230), (205, 60901784), (328, 38063615), (410, 30450892), (820, 15225446), (1640, 7612723)]