198009520

素因数分解:

$2^4\times 5^1\times {\mathrm{709}}^1\times {\mathrm{3491}}^1$

素因数の和:4213

約数の個数: 40

約数和(自身を含む): 461153520

約数和(自身を除く): 263144000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 709, 1418, 2836, 3491, 3545, 5672, 6982, 7090, 11344, 13964, 14180, 17455, 27928, 28360, 34910, 55856, 56720, 69820, 139640, 279280, 2475119, 4950238, 9900476, 12375595, 19800952, 24751190, 39601904, 49502380, 99004760, 198009520]

約数ペア:

[(1, 198009520), (2, 99004760), (4, 49502380), (5, 39601904), (8, 24751190), (10, 19800952), (16, 12375595), (20, 9900476), (40, 4950238), (80, 2475119), (709, 279280), (1418, 139640), (2836, 69820), (3491, 56720), (3545, 55856), (5672, 34910), (6982, 28360), (7090, 27928), (11344, 17455), (13964, 14180)]