261504180

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{9883}}^1$

素因数の和:9915

約数の個数: 144

約数和(自身を含む): 946491840

約数和(自身を除く): 684987660

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, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 126, 135, 140, 147, 180, 189, 196, 210, 245, 252, 270, 294, 315, 378, 420, 441, 490, 540, 588, 630, 735, 756, 882, 945, 980, 1260, 1323, 1470, 1764, 1890, 2205, 2646, 2940, 3780, 4410, 5292, 6615, 8820, 9883, 13230, 19766, 26460, 29649, 39532, 49415, 59298, 69181, 88947, 98830, 118596, 138362, 148245, 177894, 197660, 207543, 266841, 276724, 296490, 345905, 355788, 415086, 444735, 484267, 533682, 592980, 622629, 691810, 830172, 889470, 968534, 1037715, 1067364, 1245258, 1334205, 1383620, 1452801, 1778940, 1867887, 1937068, 2075430, 2421335, 2490516, 2668410, 2905602, 3113145, 3735774, 4150860, 4358403, 4842670, 5336820, 5811204, 6226290, 7264005, 7471548, 8716806, 9339435, 9685340, 12452580, 13075209, 14528010, 17433612, 18678870, 21792015, 26150418, 29056020, 37357740, 43584030, 52300836, 65376045, 87168060, 130752090, 261504180]

約数ペア:

[(1, 261504180), (2, 130752090), (3, 87168060), (4, 65376045), (5, 52300836), (6, 43584030), (7, 37357740), (9, 29056020), (10, 26150418), (12, 21792015), (14, 18678870), (15, 17433612), (18, 14528010), (20, 13075209), (21, 12452580), (27, 9685340), (28, 9339435), (30, 8716806), (35, 7471548), (36, 7264005), (42, 6226290), (45, 5811204), (49, 5336820), (54, 4842670), (60, 4358403), (63, 4150860), (70, 3735774), (84, 3113145), (90, 2905602), (98, 2668410), (105, 2490516), (108, 2421335), (126, 2075430), (135, 1937068), (140, 1867887), (147, 1778940), (180, 1452801), (189, 1383620), (196, 1334205), (210, 1245258), (245, 1067364), (252, 1037715), (270, 968534), (294, 889470), (315, 830172), (378, 691810), (420, 622629), (441, 592980), (490, 533682), (540, 484267), (588, 444735), (630, 415086), (735, 355788), (756, 345905), (882, 296490), (945, 276724), (980, 266841), (1260, 207543), (1323, 197660), (1470, 177894), (1764, 148245), (1890, 138362), (2205, 118596), (2646, 98830), (2940, 88947), (3780, 69181), (4410, 59298), (5292, 49415), (6615, 39532), (8820, 29649), (9883, 26460), (13230, 19766)]