81557892

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{761}}^1$

素因数の和:1013

約数の個数: 72

約数和(自身を含む): 223281240

約数和(自身を除く): 141723348

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 229, 234, 458, 468, 687, 761, 916, 1374, 1522, 2061, 2283, 2748, 2977, 3044, 4122, 4566, 5954, 6849, 8244, 8931, 9132, 9893, 11908, 13698, 17862, 19786, 26793, 27396, 29679, 35724, 39572, 53586, 59358, 89037, 107172, 118716, 174269, 178074, 348538, 356148, 522807, 697076, 1045614, 1568421, 2091228, 2265497, 3136842, 4530994, 6273684, 6796491, 9061988, 13592982, 20389473, 27185964, 40778946, 81557892]

約数ペア:

[(1, 81557892), (2, 40778946), (3, 27185964), (4, 20389473), (6, 13592982), (9, 9061988), (12, 6796491), (13, 6273684), (18, 4530994), (26, 3136842), (36, 2265497), (39, 2091228), (52, 1568421), (78, 1045614), (117, 697076), (156, 522807), (229, 356148), (234, 348538), (458, 178074), (468, 174269), (687, 118716), (761, 107172), (916, 89037), (1374, 59358), (1522, 53586), (2061, 39572), (2283, 35724), (2748, 29679), (2977, 27396), (3044, 26793), (4122, 19786), (4566, 17862), (5954, 13698), (6849, 11908), (8244, 9893), (8931, 9132)]