20809370

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{3533}}^1$

素因数の和:3590

約数の個数: 32

約数和(自身を含む): 40711680

約数和(自身を除く): 19902310

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 95, 155, 190, 310, 589, 1178, 2945, 3533, 5890, 7066, 17665, 35330, 67127, 109523, 134254, 219046, 335635, 547615, 671270, 1095230, 2080937, 4161874, 10404685, 20809370]

約数ペア:

[(1, 20809370), (2, 10404685), (5, 4161874), (10, 2080937), (19, 1095230), (31, 671270), (38, 547615), (62, 335635), (95, 219046), (155, 134254), (190, 109523), (310, 67127), (589, 35330), (1178, 17665), (2945, 7066), (3533, 5890)]