81397728

素因数分解:

$2^5\times 3^2\times {\mathrm{137}}^1\times {\mathrm{2063}}^1$

素因数の和:2216

約数の個数: 72

約数和(自身を含む): 233277408

約数和(自身を除く): 151879680

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 137, 144, 274, 288, 411, 548, 822, 1096, 1233, 1644, 2063, 2192, 2466, 3288, 4126, 4384, 4932, 6189, 6576, 8252, 9864, 12378, 13152, 16504, 18567, 19728, 24756, 33008, 37134, 39456, 49512, 66016, 74268, 99024, 148536, 198048, 282631, 297072, 565262, 594144, 847893, 1130524, 1695786, 2261048, 2543679, 3391572, 4522096, 5087358, 6783144, 9044192, 10174716, 13566288, 20349432, 27132576, 40698864, 81397728]

約数ペア:

[(1, 81397728), (2, 40698864), (3, 27132576), (4, 20349432), (6, 13566288), (8, 10174716), (9, 9044192), (12, 6783144), (16, 5087358), (18, 4522096), (24, 3391572), (32, 2543679), (36, 2261048), (48, 1695786), (72, 1130524), (96, 847893), (137, 594144), (144, 565262), (274, 297072), (288, 282631), (411, 198048), (548, 148536), (822, 99024), (1096, 74268), (1233, 66016), (1644, 49512), (2063, 39456), (2192, 37134), (2466, 33008), (3288, 24756), (4126, 19728), (4384, 18567), (4932, 16504), (6189, 13152), (6576, 12378), (8252, 9864)]