81324810

素因数分解:

$2^1\times 3^5\times 5^1\times 7^2\times {\mathrm{683}}^1$

素因数の和:719

約数の個数: 144

約数和(自身を含む): 255449376

約数和(自身を除く): 174124566

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 49, 54, 63, 70, 81, 90, 98, 105, 126, 135, 147, 162, 189, 210, 243, 245, 270, 294, 315, 378, 405, 441, 486, 490, 567, 630, 683, 735, 810, 882, 945, 1134, 1215, 1323, 1366, 1470, 1701, 1890, 2049, 2205, 2430, 2646, 2835, 3402, 3415, 3969, 4098, 4410, 4781, 5670, 6147, 6615, 6830, 7938, 8505, 9562, 10245, 11907, 12294, 13230, 14343, 17010, 18441, 19845, 20490, 23814, 23905, 28686, 30735, 33467, 36882, 39690, 43029, 47810, 55323, 59535, 61470, 66934, 71715, 86058, 92205, 100401, 110646, 119070, 129087, 143430, 165969, 167335, 184410, 200802, 215145, 258174, 276615, 301203, 331938, 334670, 387261, 430290, 502005, 553230, 602406, 645435, 774522, 829845, 903609, 1004010, 1161783, 1290870, 1506015, 1659690, 1807218, 1936305, 2323566, 2710827, 3012030, 3872610, 4518045, 5421654, 5808915, 8132481, 9036090, 11617830, 13554135, 16264962, 27108270, 40662405, 81324810]

約数ペア:

[(1, 81324810), (2, 40662405), (3, 27108270), (5, 16264962), (6, 13554135), (7, 11617830), (9, 9036090), (10, 8132481), (14, 5808915), (15, 5421654), (18, 4518045), (21, 3872610), (27, 3012030), (30, 2710827), (35, 2323566), (42, 1936305), (45, 1807218), (49, 1659690), (54, 1506015), (63, 1290870), (70, 1161783), (81, 1004010), (90, 903609), (98, 829845), (105, 774522), (126, 645435), (135, 602406), (147, 553230), (162, 502005), (189, 430290), (210, 387261), (243, 334670), (245, 331938), (270, 301203), (294, 276615), (315, 258174), (378, 215145), (405, 200802), (441, 184410), (486, 167335), (490, 165969), (567, 143430), (630, 129087), (683, 119070), (735, 110646), (810, 100401), (882, 92205), (945, 86058), (1134, 71715), (1215, 66934), (1323, 61470), (1366, 59535), (1470, 55323), (1701, 47810), (1890, 43029), (2049, 39690), (2205, 36882), (2430, 33467), (2646, 30735), (2835, 28686), (3402, 23905), (3415, 23814), (3969, 20490), (4098, 19845), (4410, 18441), (4781, 17010), (5670, 14343), (6147, 13230), (6615, 12294), (6830, 11907), (7938, 10245), (8505, 9562)]