31338520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{199}}^1$

素因数の和:368

約数の個数: 64

約数和(自身を含む): 73728000

約数和(自身を除く): 42389480

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 127, 155, 199, 248, 254, 310, 398, 508, 620, 635, 796, 995, 1016, 1240, 1270, 1592, 1990, 2540, 3937, 3980, 5080, 6169, 7874, 7960, 12338, 15748, 19685, 24676, 25273, 30845, 31496, 39370, 49352, 50546, 61690, 78740, 101092, 123380, 126365, 157480, 202184, 246760, 252730, 505460, 783463, 1010920, 1566926, 3133852, 3917315, 6267704, 7834630, 15669260, 31338520]

約数ペア:

[(1, 31338520), (2, 15669260), (4, 7834630), (5, 6267704), (8, 3917315), (10, 3133852), (20, 1566926), (31, 1010920), (40, 783463), (62, 505460), (124, 252730), (127, 246760), (155, 202184), (199, 157480), (248, 126365), (254, 123380), (310, 101092), (398, 78740), (508, 61690), (620, 50546), (635, 49352), (796, 39370), (995, 31496), (1016, 30845), (1240, 25273), (1270, 24676), (1592, 19685), (1990, 15748), (2540, 12338), (3937, 7960), (3980, 7874), (5080, 6169)]