81705360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{30949}}^1$

素因数の和:30976

約数の個数: 80

約数和(自身を含む): 276321600

約数和(自身を除く): 194616240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 30949, 61898, 92847, 123796, 154745, 185694, 247592, 309490, 340439, 371388, 464235, 495184, 618980, 680878, 742776, 928470, 1021317, 1237960, 1361756, 1485552, 1702195, 1856940, 2042634, 2475920, 2723512, 3404390, 3713880, 4085268, 5106585, 5447024, 6808780, 7427760, 8170536, 10213170, 13617560, 16341072, 20426340, 27235120, 40852680, 81705360]

約数ペア:

[(1, 81705360), (2, 40852680), (3, 27235120), (4, 20426340), (5, 16341072), (6, 13617560), (8, 10213170), (10, 8170536), (11, 7427760), (12, 6808780), (15, 5447024), (16, 5106585), (20, 4085268), (22, 3713880), (24, 3404390), (30, 2723512), (33, 2475920), (40, 2042634), (44, 1856940), (48, 1702195), (55, 1485552), (60, 1361756), (66, 1237960), (80, 1021317), (88, 928470), (110, 742776), (120, 680878), (132, 618980), (165, 495184), (176, 464235), (220, 371388), (240, 340439), (264, 309490), (330, 247592), (440, 185694), (528, 154745), (660, 123796), (880, 92847), (1320, 61898), (2640, 30949)]