28056840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{263}}^1$

素因数の和:411

約数の個数: 128

約数和(自身を含む): 97320960

約数和(自身を除く): 69264120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 127, 140, 168, 210, 254, 263, 280, 381, 420, 508, 526, 635, 762, 789, 840, 889, 1016, 1052, 1270, 1315, 1524, 1578, 1778, 1841, 1905, 2104, 2540, 2630, 2667, 3048, 3156, 3556, 3682, 3810, 3945, 4445, 5080, 5260, 5334, 5523, 6312, 7112, 7364, 7620, 7890, 8890, 9205, 10520, 10668, 11046, 13335, 14728, 15240, 15780, 17780, 18410, 21336, 22092, 26670, 27615, 31560, 33401, 35560, 36820, 44184, 53340, 55230, 66802, 73640, 100203, 106680, 110460, 133604, 167005, 200406, 220920, 233807, 267208, 334010, 400812, 467614, 501015, 668020, 701421, 801624, 935228, 1002030, 1169035, 1336040, 1402842, 1870456, 2004060, 2338070, 2805684, 3507105, 4008120, 4676140, 5611368, 7014210, 9352280, 14028420, 28056840]

約数ペア:

[(1, 28056840), (2, 14028420), (3, 9352280), (4, 7014210), (5, 5611368), (6, 4676140), (7, 4008120), (8, 3507105), (10, 2805684), (12, 2338070), (14, 2004060), (15, 1870456), (20, 1402842), (21, 1336040), (24, 1169035), (28, 1002030), (30, 935228), (35, 801624), (40, 701421), (42, 668020), (56, 501015), (60, 467614), (70, 400812), (84, 334010), (105, 267208), (120, 233807), (127, 220920), (140, 200406), (168, 167005), (210, 133604), (254, 110460), (263, 106680), (280, 100203), (381, 73640), (420, 66802), (508, 55230), (526, 53340), (635, 44184), (762, 36820), (789, 35560), (840, 33401), (889, 31560), (1016, 27615), (1052, 26670), (1270, 22092), (1315, 21336), (1524, 18410), (1578, 17780), (1778, 15780), (1841, 15240), (1905, 14728), (2104, 13335), (2540, 11046), (2630, 10668), (2667, 10520), (3048, 9205), (3156, 8890), (3556, 7890), (3682, 7620), (3810, 7364), (3945, 7112), (4445, 6312), (5080, 5523), (5260, 5334)]