1981260

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{1223}}^1$

素因数の和:1244

約数の個数: 60

約数和(自身を含む): 6220368

約数和(自身を除く): 4239108

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1223, 1620, 2446, 3669, 4892, 6115, 7338, 11007, 12230, 14676, 18345, 22014, 24460, 33021, 36690, 44028, 55035, 66042, 73380, 99063, 110070, 132084, 165105, 198126, 220140, 330210, 396252, 495315, 660420, 990630, 1981260]

約数ペア:

[(1, 1981260), (2, 990630), (3, 660420), (4, 495315), (5, 396252), (6, 330210), (9, 220140), (10, 198126), (12, 165105), (15, 132084), (18, 110070), (20, 99063), (27, 73380), (30, 66042), (36, 55035), (45, 44028), (54, 36690), (60, 33021), (81, 24460), (90, 22014), (108, 18345), (135, 14676), (162, 12230), (180, 11007), (270, 7338), (324, 6115), (405, 4892), (540, 3669), (810, 2446), (1223, 1620)]