81896760

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20681}}^1$

素因数の和:20709

約数の個数: 96

約数和(自身を含む): 290375280

約数和(自身を除く): 208478520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 132, 165, 180, 198, 220, 264, 330, 360, 396, 440, 495, 660, 792, 990, 1320, 1980, 3960, 20681, 41362, 62043, 82724, 103405, 124086, 165448, 186129, 206810, 227491, 248172, 310215, 372258, 413620, 454982, 496344, 620430, 682473, 744516, 827240, 909964, 930645, 1137455, 1240860, 1364946, 1489032, 1819928, 1861290, 2047419, 2274910, 2481720, 2729892, 3412365, 3722580, 4094838, 4549820, 5459784, 6824730, 7445160, 8189676, 9099640, 10237095, 13649460, 16379352, 20474190, 27298920, 40948380, 81896760]

約数ペア:

[(1, 81896760), (2, 40948380), (3, 27298920), (4, 20474190), (5, 16379352), (6, 13649460), (8, 10237095), (9, 9099640), (10, 8189676), (11, 7445160), (12, 6824730), (15, 5459784), (18, 4549820), (20, 4094838), (22, 3722580), (24, 3412365), (30, 2729892), (33, 2481720), (36, 2274910), (40, 2047419), (44, 1861290), (45, 1819928), (55, 1489032), (60, 1364946), (66, 1240860), (72, 1137455), (88, 930645), (90, 909964), (99, 827240), (110, 744516), (120, 682473), (132, 620430), (165, 496344), (180, 454982), (198, 413620), (220, 372258), (264, 310215), (330, 248172), (360, 227491), (396, 206810), (440, 186129), (495, 165448), (660, 124086), (792, 103405), (990, 82724), (1320, 62043), (1980, 41362), (3960, 20681)]