54408080

素因数分解:

$2^4\times 5^1\times {\mathrm{641}}^1\times {\mathrm{1061}}^1$

素因数の和:1715

約数の個数: 40

約数和(自身を含む): 126815544

約数和(自身を除く): 72407464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 641, 1061, 1282, 2122, 2564, 3205, 4244, 5128, 5305, 6410, 8488, 10256, 10610, 12820, 16976, 21220, 25640, 42440, 51280, 84880, 680101, 1360202, 2720404, 3400505, 5440808, 6801010, 10881616, 13602020, 27204040, 54408080]

約数ペア:

[(1, 54408080), (2, 27204040), (4, 13602020), (5, 10881616), (8, 6801010), (10, 5440808), (16, 3400505), (20, 2720404), (40, 1360202), (80, 680101), (641, 84880), (1061, 51280), (1282, 42440), (2122, 25640), (2564, 21220), (3205, 16976), (4244, 12820), (5128, 10610), (5305, 10256), (6410, 8488)]