81978468

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:186

約数の個数: 144

約数和(自身を含む): 233986368

約数和(自身を除く): 152007900

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 43, 44, 52, 66, 78, 86, 101, 121, 129, 132, 143, 156, 172, 202, 242, 258, 286, 303, 363, 404, 429, 473, 484, 516, 559, 572, 606, 726, 858, 946, 1111, 1118, 1212, 1313, 1419, 1452, 1573, 1677, 1716, 1892, 2222, 2236, 2626, 2838, 3146, 3333, 3354, 3939, 4343, 4444, 4719, 5203, 5252, 5676, 6149, 6292, 6666, 6708, 7878, 8686, 9438, 10406, 12221, 12298, 13029, 13332, 14443, 15609, 15756, 17372, 18447, 18876, 20812, 24442, 24596, 26058, 28886, 31218, 36663, 36894, 43329, 47773, 48884, 52116, 56459, 57772, 62436, 67639, 73326, 73788, 86658, 95546, 112918, 135278, 143319, 146652, 158873, 169377, 173316, 191092, 202917, 225836, 270556, 286638, 317746, 338754, 405834, 476619, 525503, 573276, 621049, 635492, 677508, 811668, 953238, 1051006, 1242098, 1576509, 1863147, 1906476, 2102012, 2484196, 3153018, 3726294, 6306036, 6831539, 7452588, 13663078, 20494617, 27326156, 40989234, 81978468]

約数ペア:

[(1, 81978468), (2, 40989234), (3, 27326156), (4, 20494617), (6, 13663078), (11, 7452588), (12, 6831539), (13, 6306036), (22, 3726294), (26, 3153018), (33, 2484196), (39, 2102012), (43, 1906476), (44, 1863147), (52, 1576509), (66, 1242098), (78, 1051006), (86, 953238), (101, 811668), (121, 677508), (129, 635492), (132, 621049), (143, 573276), (156, 525503), (172, 476619), (202, 405834), (242, 338754), (258, 317746), (286, 286638), (303, 270556), (363, 225836), (404, 202917), (429, 191092), (473, 173316), (484, 169377), (516, 158873), (559, 146652), (572, 143319), (606, 135278), (726, 112918), (858, 95546), (946, 86658), (1111, 73788), (1118, 73326), (1212, 67639), (1313, 62436), (1419, 57772), (1452, 56459), (1573, 52116), (1677, 48884), (1716, 47773), (1892, 43329), (2222, 36894), (2236, 36663), (2626, 31218), (2838, 28886), (3146, 26058), (3333, 24596), (3354, 24442), (3939, 20812), (4343, 18876), (4444, 18447), (4719, 17372), (5203, 15756), (5252, 15609), (5676, 14443), (6149, 13332), (6292, 13029), (6666, 12298), (6708, 12221), (7878, 10406), (8686, 9438)]