28588340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{653}}^1$

素因数の和:872

約数の個数: 48

約数和(自身を含む): 65923200

約数和(自身を除く): 37334860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 199, 220, 398, 653, 796, 995, 1306, 1990, 2189, 2612, 3265, 3980, 4378, 6530, 7183, 8756, 10945, 13060, 14366, 21890, 28732, 35915, 43780, 71830, 129947, 143660, 259894, 519788, 649735, 1299470, 1429417, 2598940, 2858834, 5717668, 7147085, 14294170, 28588340]

約数ペア:

[(1, 28588340), (2, 14294170), (4, 7147085), (5, 5717668), (10, 2858834), (11, 2598940), (20, 1429417), (22, 1299470), (44, 649735), (55, 519788), (110, 259894), (199, 143660), (220, 129947), (398, 71830), (653, 43780), (796, 35915), (995, 28732), (1306, 21890), (1990, 14366), (2189, 13060), (2612, 10945), (3265, 8756), (3980, 7183), (4378, 6530)]