81468660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{347}}^1$

素因数の和:422

約数の個数: 192

約数和(自身を含む): 288110592

約数和(自身を除く): 206641932

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 43, 52, 60, 65, 70, 78, 84, 86, 91, 105, 129, 130, 140, 156, 172, 182, 195, 210, 215, 258, 260, 273, 301, 347, 364, 390, 420, 430, 455, 516, 546, 559, 602, 645, 694, 780, 860, 903, 910, 1041, 1092, 1118, 1204, 1290, 1365, 1388, 1505, 1677, 1735, 1806, 1820, 2082, 2236, 2429, 2580, 2730, 2795, 3010, 3354, 3470, 3612, 3913, 4164, 4511, 4515, 4858, 5205, 5460, 5590, 6020, 6708, 6940, 7287, 7826, 8385, 9022, 9030, 9716, 10410, 11180, 11739, 12145, 13533, 14574, 14921, 15652, 16770, 18044, 18060, 19565, 20820, 22555, 23478, 24290, 27066, 29148, 29842, 31577, 33540, 36435, 39130, 44763, 45110, 46956, 48580, 54132, 58695, 59684, 63154, 67665, 72870, 74605, 78260, 89526, 90220, 94731, 104447, 117390, 126308, 135330, 145740, 149210, 157885, 179052, 189462, 193973, 208894, 223815, 234780, 270660, 298420, 313341, 315770, 378924, 387946, 417788, 447630, 473655, 522235, 581919, 626682, 631540, 775892, 895260, 947310, 969865, 1044470, 1163838, 1253364, 1357811, 1566705, 1894620, 1939730, 2088940, 2327676, 2715622, 2909595, 3133410, 3879460, 4073433, 5431244, 5819190, 6266820, 6789055, 8146866, 11638380, 13578110, 16293732, 20367165, 27156220, 40734330, 81468660]

約数ペア:

[(1, 81468660), (2, 40734330), (3, 27156220), (4, 20367165), (5, 16293732), (6, 13578110), (7, 11638380), (10, 8146866), (12, 6789055), (13, 6266820), (14, 5819190), (15, 5431244), (20, 4073433), (21, 3879460), (26, 3133410), (28, 2909595), (30, 2715622), (35, 2327676), (39, 2088940), (42, 1939730), (43, 1894620), (52, 1566705), (60, 1357811), (65, 1253364), (70, 1163838), (78, 1044470), (84, 969865), (86, 947310), (91, 895260), (105, 775892), (129, 631540), (130, 626682), (140, 581919), (156, 522235), (172, 473655), (182, 447630), (195, 417788), (210, 387946), (215, 378924), (258, 315770), (260, 313341), (273, 298420), (301, 270660), (347, 234780), (364, 223815), (390, 208894), (420, 193973), (430, 189462), (455, 179052), (516, 157885), (546, 149210), (559, 145740), (602, 135330), (645, 126308), (694, 117390), (780, 104447), (860, 94731), (903, 90220), (910, 89526), (1041, 78260), (1092, 74605), (1118, 72870), (1204, 67665), (1290, 63154), (1365, 59684), (1388, 58695), (1505, 54132), (1677, 48580), (1735, 46956), (1806, 45110), (1820, 44763), (2082, 39130), (2236, 36435), (2429, 33540), (2580, 31577), (2730, 29842), (2795, 29148), (3010, 27066), (3354, 24290), (3470, 23478), (3612, 22555), (3913, 20820), (4164, 19565), (4511, 18060), (4515, 18044), (4858, 16770), (5205, 15652), (5460, 14921), (5590, 14574), (6020, 13533), (6708, 12145), (6940, 11739), (7287, 11180), (7826, 10410), (8385, 9716), (9022, 9030)]