90357940

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1\times {\mathrm{311}}^1$

素因数の和:592

約数の個数: 48

約数和(自身を含む): 193939200

約数和(自身を除く): 103581260

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 199, 292, 311, 365, 398, 622, 730, 796, 995, 1244, 1460, 1555, 1990, 3110, 3980, 6220, 14527, 22703, 29054, 45406, 58108, 61889, 72635, 90812, 113515, 123778, 145270, 227030, 247556, 290540, 309445, 454060, 618890, 1237780, 4517897, 9035794, 18071588, 22589485, 45178970, 90357940]

約数ペア:

[(1, 90357940), (2, 45178970), (4, 22589485), (5, 18071588), (10, 9035794), (20, 4517897), (73, 1237780), (146, 618890), (199, 454060), (292, 309445), (311, 290540), (365, 247556), (398, 227030), (622, 145270), (730, 123778), (796, 113515), (995, 90812), (1244, 72635), (1460, 61889), (1555, 58108), (1990, 45406), (3110, 29054), (3980, 22703), (6220, 14527)]