28827940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{709}}^1$

素因数の和:844

約数の個数: 48

約数和(自身を含む): 64411200

約数和(自身を除く): 35583260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 107, 190, 214, 380, 428, 535, 709, 1070, 1418, 2033, 2140, 2836, 3545, 4066, 7090, 8132, 10165, 13471, 14180, 20330, 26942, 40660, 53884, 67355, 75863, 134710, 151726, 269420, 303452, 379315, 758630, 1441397, 1517260, 2882794, 5765588, 7206985, 14413970, 28827940]

約数ペア:

[(1, 28827940), (2, 14413970), (4, 7206985), (5, 5765588), (10, 2882794), (19, 1517260), (20, 1441397), (38, 758630), (76, 379315), (95, 303452), (107, 269420), (190, 151726), (214, 134710), (380, 75863), (428, 67355), (535, 53884), (709, 40660), (1070, 26942), (1418, 20330), (2033, 14180), (2140, 13471), (2836, 10165), (3545, 8132), (4066, 7090)]