84381880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{389}}^1$

素因数の和:457

約数の個数: 128

約数和(自身を含む): 227448000

約数和(自身を除く): 143066120

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 29, 34, 40, 44, 55, 58, 68, 85, 88, 110, 116, 136, 145, 170, 187, 220, 232, 290, 319, 340, 374, 389, 440, 493, 580, 638, 680, 748, 778, 935, 986, 1160, 1276, 1496, 1556, 1595, 1870, 1945, 1972, 2465, 2552, 3112, 3190, 3740, 3890, 3944, 4279, 4930, 5423, 6380, 6613, 7480, 7780, 8558, 9860, 10846, 11281, 12760, 13226, 15560, 17116, 19720, 21395, 21692, 22562, 26452, 27115, 33065, 34232, 42790, 43384, 45124, 52904, 54230, 56405, 66130, 72743, 85580, 90248, 108460, 112810, 124091, 132260, 145486, 171160, 191777, 216920, 225620, 248182, 264520, 290972, 363715, 383554, 451240, 496364, 581944, 620455, 727430, 767108, 958885, 992728, 1240910, 1454860, 1534216, 1917770, 2109547, 2481820, 2909720, 3835540, 4219094, 4963640, 7671080, 8438188, 10547735, 16876376, 21095470, 42190940, 84381880]

約数ペア:

[(1, 84381880), (2, 42190940), (4, 21095470), (5, 16876376), (8, 10547735), (10, 8438188), (11, 7671080), (17, 4963640), (20, 4219094), (22, 3835540), (29, 2909720), (34, 2481820), (40, 2109547), (44, 1917770), (55, 1534216), (58, 1454860), (68, 1240910), (85, 992728), (88, 958885), (110, 767108), (116, 727430), (136, 620455), (145, 581944), (170, 496364), (187, 451240), (220, 383554), (232, 363715), (290, 290972), (319, 264520), (340, 248182), (374, 225620), (389, 216920), (440, 191777), (493, 171160), (580, 145486), (638, 132260), (680, 124091), (748, 112810), (778, 108460), (935, 90248), (986, 85580), (1160, 72743), (1276, 66130), (1496, 56405), (1556, 54230), (1595, 52904), (1870, 45124), (1945, 43384), (1972, 42790), (2465, 34232), (2552, 33065), (3112, 27115), (3190, 26452), (3740, 22562), (3890, 21692), (3944, 21395), (4279, 19720), (4930, 17116), (5423, 15560), (6380, 13226), (6613, 12760), (7480, 11281), (7780, 10846), (8558, 9860)]