209204120

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{168713}}^1$

素因数の和:168755

約数の個数: 32

約数和(自身を含む): 485896320

約数和(自身を除く): 276692200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 168713, 337426, 674852, 843565, 1349704, 1687130, 3374260, 5230103, 6748520, 10460206, 20920412, 26150515, 41840824, 52301030, 104602060, 209204120]

約数ペア:

[(1, 209204120), (2, 104602060), (4, 52301030), (5, 41840824), (8, 26150515), (10, 20920412), (20, 10460206), (31, 6748520), (40, 5230103), (62, 3374260), (124, 1687130), (155, 1349704), (248, 843565), (310, 674852), (620, 337426), (1240, 168713)]