1661220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{839}}^1$

素因数の和:865

約数の個数: 72

約数和(自身を含む): 5503680

約数和(自身を除く): 3842460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 839, 990, 1678, 1980, 2517, 3356, 4195, 5034, 7551, 8390, 9229, 10068, 12585, 15102, 16780, 18458, 25170, 27687, 30204, 36916, 37755, 46145, 50340, 55374, 75510, 83061, 92290, 110748, 138435, 151020, 166122, 184580, 276870, 332244, 415305, 553740, 830610, 1661220]

約数ペア:

[(1, 1661220), (2, 830610), (3, 553740), (4, 415305), (5, 332244), (6, 276870), (9, 184580), (10, 166122), (11, 151020), (12, 138435), (15, 110748), (18, 92290), (20, 83061), (22, 75510), (30, 55374), (33, 50340), (36, 46145), (44, 37755), (45, 36916), (55, 30204), (60, 27687), (66, 25170), (90, 18458), (99, 16780), (110, 15102), (132, 12585), (165, 10068), (180, 9229), (198, 8390), (220, 7551), (330, 5034), (396, 4195), (495, 3356), (660, 2517), (839, 1980), (990, 1678)]