81678870

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{9973}}^1$

素因数の和:10006

約数の個数: 96

約数和(自身を含む): 261398592

約数和(自身を除く): 179719722

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 26, 30, 35, 39, 42, 45, 63, 65, 70, 78, 90, 91, 105, 117, 126, 130, 182, 195, 210, 234, 273, 315, 390, 455, 546, 585, 630, 819, 910, 1170, 1365, 1638, 2730, 4095, 8190, 9973, 19946, 29919, 49865, 59838, 69811, 89757, 99730, 129649, 139622, 149595, 179514, 209433, 259298, 299190, 349055, 388947, 418866, 448785, 628299, 648245, 698110, 777894, 897570, 907543, 1047165, 1166841, 1256598, 1296490, 1815086, 1944735, 2094330, 2333682, 2722629, 3141495, 3889470, 4537715, 5445258, 5834205, 6282990, 8167887, 9075430, 11668410, 13613145, 16335774, 27226290, 40839435, 81678870]

約数ペア:

[(1, 81678870), (2, 40839435), (3, 27226290), (5, 16335774), (6, 13613145), (7, 11668410), (9, 9075430), (10, 8167887), (13, 6282990), (14, 5834205), (15, 5445258), (18, 4537715), (21, 3889470), (26, 3141495), (30, 2722629), (35, 2333682), (39, 2094330), (42, 1944735), (45, 1815086), (63, 1296490), (65, 1256598), (70, 1166841), (78, 1047165), (90, 907543), (91, 897570), (105, 777894), (117, 698110), (126, 648245), (130, 628299), (182, 448785), (195, 418866), (210, 388947), (234, 349055), (273, 299190), (315, 259298), (390, 209433), (455, 179514), (546, 149595), (585, 139622), (630, 129649), (819, 99730), (910, 89757), (1170, 69811), (1365, 59838), (1638, 49865), (2730, 29919), (4095, 19946), (8190, 9973)]