19901970

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{6701}}^1$

素因数の和:6728

約数の個数: 64

約数和(自身を含む): 57905280

約数和(自身を除く): 38003310

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 27, 30, 33, 45, 54, 55, 66, 90, 99, 110, 135, 165, 198, 270, 297, 330, 495, 594, 990, 1485, 2970, 6701, 13402, 20103, 33505, 40206, 60309, 67010, 73711, 100515, 120618, 147422, 180927, 201030, 221133, 301545, 361854, 368555, 442266, 603090, 663399, 737110, 904635, 1105665, 1326798, 1809270, 1990197, 2211330, 3316995, 3980394, 6633990, 9950985, 19901970]

約数ペア:

[(1, 19901970), (2, 9950985), (3, 6633990), (5, 3980394), (6, 3316995), (9, 2211330), (10, 1990197), (11, 1809270), (15, 1326798), (18, 1105665), (22, 904635), (27, 737110), (30, 663399), (33, 603090), (45, 442266), (54, 368555), (55, 361854), (66, 301545), (90, 221133), (99, 201030), (110, 180927), (135, 147422), (165, 120618), (198, 100515), (270, 73711), (297, 67010), (330, 60309), (495, 40206), (594, 33505), (990, 20103), (1485, 13402), (2970, 6701)]