210208520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{169523}}^1$

素因数の和:169565

約数の個数: 32

約数和(自身を含む): 488229120

約数和(自身を除く): 278020600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 169523, 339046, 678092, 847615, 1356184, 1695230, 3390460, 5255213, 6780920, 10510426, 21020852, 26276065, 42041704, 52552130, 105104260, 210208520]

約数ペア:

[(1, 210208520), (2, 105104260), (4, 52552130), (5, 42041704), (8, 26276065), (10, 21020852), (20, 10510426), (31, 6780920), (40, 5255213), (62, 3390460), (124, 1695230), (155, 1356184), (248, 847615), (310, 678092), (620, 339046), (1240, 169523)]