1811340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{347}}^1$

素因数の和:391

約数の個数: 72

約数和(自身を含む): 5700240

約数和(自身を除く): 3888900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 347, 348, 435, 522, 580, 694, 870, 1041, 1044, 1305, 1388, 1735, 1740, 2082, 2610, 3123, 3470, 4164, 5205, 5220, 6246, 6940, 10063, 10410, 12492, 15615, 20126, 20820, 30189, 31230, 40252, 50315, 60378, 62460, 90567, 100630, 120756, 150945, 181134, 201260, 301890, 362268, 452835, 603780, 905670, 1811340]

約数ペア:

[(1, 1811340), (2, 905670), (3, 603780), (4, 452835), (5, 362268), (6, 301890), (9, 201260), (10, 181134), (12, 150945), (15, 120756), (18, 100630), (20, 90567), (29, 62460), (30, 60378), (36, 50315), (45, 40252), (58, 31230), (60, 30189), (87, 20820), (90, 20126), (116, 15615), (145, 12492), (174, 10410), (180, 10063), (261, 6940), (290, 6246), (347, 5220), (348, 5205), (435, 4164), (522, 3470), (580, 3123), (694, 2610), (870, 2082), (1041, 1740), (1044, 1735), (1305, 1388)]