81661392

素因数分解:

$2^4\times 3^3\times {\mathrm{19}}^1\times {\mathrm{9949}}^1$

素因数の和:9985

約数の個数: 80

約数和(自身を含む): 246760000

約数和(自身を除く): 165098608

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 27, 36, 38, 48, 54, 57, 72, 76, 108, 114, 144, 152, 171, 216, 228, 304, 342, 432, 456, 513, 684, 912, 1026, 1368, 2052, 2736, 4104, 8208, 9949, 19898, 29847, 39796, 59694, 79592, 89541, 119388, 159184, 179082, 189031, 238776, 268623, 358164, 378062, 477552, 537246, 567093, 716328, 756124, 1074492, 1134186, 1432656, 1512248, 1701279, 2148984, 2268372, 3024496, 3402558, 4297968, 4536744, 5103837, 6805116, 9073488, 10207674, 13610232, 20415348, 27220464, 40830696, 81661392]

約数ペア:

[(1, 81661392), (2, 40830696), (3, 27220464), (4, 20415348), (6, 13610232), (8, 10207674), (9, 9073488), (12, 6805116), (16, 5103837), (18, 4536744), (19, 4297968), (24, 3402558), (27, 3024496), (36, 2268372), (38, 2148984), (48, 1701279), (54, 1512248), (57, 1432656), (72, 1134186), (76, 1074492), (108, 756124), (114, 716328), (144, 567093), (152, 537246), (171, 477552), (216, 378062), (228, 358164), (304, 268623), (342, 238776), (432, 189031), (456, 179082), (513, 159184), (684, 119388), (912, 89541), (1026, 79592), (1368, 59694), (2052, 39796), (2736, 29847), (4104, 19898), (8208, 9949)]