80821728

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{21587}}^1$

素因数の和:21616

約数の個数: 72

約数和(自身を含む): 247528008

約数和(自身を除く): 166706280

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 208, 234, 288, 312, 416, 468, 624, 936, 1248, 1872, 3744, 21587, 43174, 64761, 86348, 129522, 172696, 194283, 259044, 280631, 345392, 388566, 518088, 561262, 690784, 777132, 841893, 1036176, 1122524, 1554264, 1683786, 2072352, 2245048, 2525679, 3108528, 3367572, 4490096, 5051358, 6217056, 6735144, 8980192, 10102716, 13470288, 20205432, 26940576, 40410864, 80821728]

約数ペア:

[(1, 80821728), (2, 40410864), (3, 26940576), (4, 20205432), (6, 13470288), (8, 10102716), (9, 8980192), (12, 6735144), (13, 6217056), (16, 5051358), (18, 4490096), (24, 3367572), (26, 3108528), (32, 2525679), (36, 2245048), (39, 2072352), (48, 1683786), (52, 1554264), (72, 1122524), (78, 1036176), (96, 841893), (104, 777132), (117, 690784), (144, 561262), (156, 518088), (208, 388566), (234, 345392), (288, 280631), (312, 259044), (416, 194283), (468, 172696), (624, 129522), (936, 86348), (1248, 64761), (1872, 43174), (3744, 21587)]