55576720

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{3491}}^1$

素因数の和:3703

約数の個数: 40

約数和(自身を含む): 129902400

約数和(自身を除く): 74325680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1592, 1990, 3184, 3491, 3980, 6982, 7960, 13964, 15920, 17455, 27928, 34910, 55856, 69820, 139640, 279280, 694709, 1389418, 2778836, 3473545, 5557672, 6947090, 11115344, 13894180, 27788360, 55576720]

約数ペア:

[(1, 55576720), (2, 27788360), (4, 13894180), (5, 11115344), (8, 6947090), (10, 5557672), (16, 3473545), (20, 2778836), (40, 1389418), (80, 694709), (199, 279280), (398, 139640), (796, 69820), (995, 55856), (1592, 34910), (1990, 27928), (3184, 17455), (3491, 15920), (3980, 13964), (6982, 7960)]