81771456

素因数分解:

$2^6\times 3^1\times {\mathrm{13}}^1\times {\mathrm{181}}^2$

素因数の和:390

約数の個数: 84

約数和(自身を含む): 234290616

約数和(自身を除く): 152519160

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 78, 96, 104, 156, 181, 192, 208, 312, 362, 416, 543, 624, 724, 832, 1086, 1248, 1448, 2172, 2353, 2496, 2896, 4344, 4706, 5792, 7059, 8688, 9412, 11584, 14118, 17376, 18824, 28236, 32761, 34752, 37648, 56472, 65522, 75296, 98283, 112944, 131044, 150592, 196566, 225888, 262088, 393132, 425893, 451776, 524176, 786264, 851786, 1048352, 1277679, 1572528, 1703572, 2096704, 2555358, 3145056, 3407144, 5110716, 6290112, 6814288, 10221432, 13628576, 20442864, 27257152, 40885728, 81771456]

約数ペア:

[(1, 81771456), (2, 40885728), (3, 27257152), (4, 20442864), (6, 13628576), (8, 10221432), (12, 6814288), (13, 6290112), (16, 5110716), (24, 3407144), (26, 3145056), (32, 2555358), (39, 2096704), (48, 1703572), (52, 1572528), (64, 1277679), (78, 1048352), (96, 851786), (104, 786264), (156, 524176), (181, 451776), (192, 425893), (208, 393132), (312, 262088), (362, 225888), (416, 196566), (543, 150592), (624, 131044), (724, 112944), (832, 98283), (1086, 75296), (1248, 65522), (1448, 56472), (2172, 37648), (2353, 34752), (2496, 32761), (2896, 28236), (4344, 18824), (4706, 17376), (5792, 14118), (7059, 11584), (8688, 9412)]