31377780

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{2767}}^1$

素因数の和:2795

約数の個数: 120

約数和(自身を含む): 112535808

約数和(自身を除く): 81158028

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 810, 945, 1134, 1260, 1620, 1890, 2268, 2767, 2835, 3780, 5534, 5670, 8301, 11068, 11340, 13835, 16602, 19369, 24903, 27670, 33204, 38738, 41505, 49806, 55340, 58107, 74709, 77476, 83010, 96845, 99612, 116214, 124515, 149418, 166020, 174321, 193690, 224127, 232428, 249030, 290535, 298836, 348642, 373545, 387380, 448254, 498060, 522963, 581070, 697284, 747090, 871605, 896508, 1045926, 1120635, 1162140, 1494180, 1568889, 1743210, 2091852, 2241270, 2614815, 3137778, 3486420, 4482540, 5229630, 6275556, 7844445, 10459260, 15688890, 31377780]

約数ペア:

[(1, 31377780), (2, 15688890), (3, 10459260), (4, 7844445), (5, 6275556), (6, 5229630), (7, 4482540), (9, 3486420), (10, 3137778), (12, 2614815), (14, 2241270), (15, 2091852), (18, 1743210), (20, 1568889), (21, 1494180), (27, 1162140), (28, 1120635), (30, 1045926), (35, 896508), (36, 871605), (42, 747090), (45, 697284), (54, 581070), (60, 522963), (63, 498060), (70, 448254), (81, 387380), (84, 373545), (90, 348642), (105, 298836), (108, 290535), (126, 249030), (135, 232428), (140, 224127), (162, 193690), (180, 174321), (189, 166020), (210, 149418), (252, 124515), (270, 116214), (315, 99612), (324, 96845), (378, 83010), (405, 77476), (420, 74709), (540, 58107), (567, 55340), (630, 49806), (756, 41505), (810, 38738), (945, 33204), (1134, 27670), (1260, 24903), (1620, 19369), (1890, 16602), (2268, 13835), (2767, 11340), (2835, 11068), (3780, 8301), (5534, 5670)]