71497980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{397211}}^1$

素因数の和:397226

約数の個数: 36

約数和(自身を含む): 216877752

約数和(自身を除く): 145379772

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 397211, 794422, 1191633, 1588844, 1986055, 2383266, 3574899, 3972110, 4766532, 5958165, 7149798, 7944220, 11916330, 14299596, 17874495, 23832660, 35748990, 71497980]

約数ペア:

[(1, 71497980), (2, 35748990), (3, 23832660), (4, 17874495), (5, 14299596), (6, 11916330), (9, 7944220), (10, 7149798), (12, 5958165), (15, 4766532), (18, 3972110), (20, 3574899), (30, 2383266), (36, 1986055), (45, 1588844), (60, 1191633), (90, 794422), (180, 397211)]