81725490

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3931}}^1$

素因数の和:3965

約数の個数: 128

約数和(自身を含む): 271779840

約数和(自身を除く): 190054350

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 27, 30, 33, 35, 42, 45, 54, 55, 63, 66, 70, 77, 90, 99, 105, 110, 126, 135, 154, 165, 189, 198, 210, 231, 270, 297, 315, 330, 378, 385, 462, 495, 594, 630, 693, 770, 945, 990, 1155, 1386, 1485, 1890, 2079, 2310, 2970, 3465, 3931, 4158, 6930, 7862, 10395, 11793, 19655, 20790, 23586, 27517, 35379, 39310, 43241, 55034, 58965, 70758, 82551, 86482, 106137, 117930, 129723, 137585, 165102, 176895, 212274, 216205, 247653, 259446, 275170, 302687, 353790, 389169, 412755, 432410, 495306, 530685, 605374, 648615, 742959, 778338, 825510, 908061, 1061370, 1167507, 1238265, 1297230, 1485918, 1513435, 1816122, 1945845, 2335014, 2476530, 2724183, 3026870, 3714795, 3891690, 4540305, 5448366, 5837535, 7429590, 8172549, 9080610, 11675070, 13620915, 16345098, 27241830, 40862745, 81725490]

約数ペア:

[(1, 81725490), (2, 40862745), (3, 27241830), (5, 16345098), (6, 13620915), (7, 11675070), (9, 9080610), (10, 8172549), (11, 7429590), (14, 5837535), (15, 5448366), (18, 4540305), (21, 3891690), (22, 3714795), (27, 3026870), (30, 2724183), (33, 2476530), (35, 2335014), (42, 1945845), (45, 1816122), (54, 1513435), (55, 1485918), (63, 1297230), (66, 1238265), (70, 1167507), (77, 1061370), (90, 908061), (99, 825510), (105, 778338), (110, 742959), (126, 648615), (135, 605374), (154, 530685), (165, 495306), (189, 432410), (198, 412755), (210, 389169), (231, 353790), (270, 302687), (297, 275170), (315, 259446), (330, 247653), (378, 216205), (385, 212274), (462, 176895), (495, 165102), (594, 137585), (630, 129723), (693, 117930), (770, 106137), (945, 86482), (990, 82551), (1155, 70758), (1386, 58965), (1485, 55034), (1890, 43241), (2079, 39310), (2310, 35379), (2970, 27517), (3465, 23586), (3931, 20790), (4158, 19655), (6930, 11793), (7862, 10395)]