990630

素因数分解:

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

素因数の和:1242

約数の個数: 40

約数和(自身を含む): 2665872

約数和(自身を除く): 1675242

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 1223, 2446, 3669, 6115, 7338, 11007, 12230, 18345, 22014, 33021, 36690, 55035, 66042, 99063, 110070, 165105, 198126, 330210, 495315, 990630]

約数ペア:

[(1, 990630), (2, 495315), (3, 330210), (5, 198126), (6, 165105), (9, 110070), (10, 99063), (15, 66042), (18, 55035), (27, 36690), (30, 33021), (45, 22014), (54, 18345), (81, 12230), (90, 11007), (135, 7338), (162, 6115), (270, 3669), (405, 2446), (810, 1223)]