28644840

素因数分解:

$2^3\times 3^5\times 5^1\times 7^1\times {\mathrm{421}}^1$

素因数の和:454

約数の個数: 192

約数和(自身を含む): 110597760

約数和(自身を除く): 81952920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 81, 84, 90, 105, 108, 120, 126, 135, 140, 162, 168, 180, 189, 210, 216, 243, 252, 270, 280, 315, 324, 360, 378, 405, 420, 421, 486, 504, 540, 567, 630, 648, 756, 810, 840, 842, 945, 972, 1080, 1134, 1215, 1260, 1263, 1512, 1620, 1684, 1701, 1890, 1944, 2105, 2268, 2430, 2520, 2526, 2835, 2947, 3240, 3368, 3402, 3780, 3789, 4210, 4536, 4860, 5052, 5670, 5894, 6315, 6804, 7560, 7578, 8420, 8505, 8841, 9720, 10104, 11340, 11367, 11788, 12630, 13608, 14735, 15156, 16840, 17010, 17682, 18945, 22680, 22734, 23576, 25260, 26523, 29470, 30312, 34020, 34101, 35364, 37890, 44205, 45468, 50520, 53046, 56835, 58940, 68040, 68202, 70728, 75780, 79569, 88410, 90936, 102303, 106092, 113670, 117880, 132615, 136404, 151560, 159138, 170505, 176820, 204606, 212184, 227340, 238707, 265230, 272808, 318276, 341010, 353640, 397845, 409212, 454680, 477414, 511515, 530460, 636552, 682020, 716121, 795690, 818424, 954828, 1023030, 1060920, 1193535, 1364040, 1432242, 1591380, 1909656, 2046060, 2387070, 2864484, 3182760, 3580605, 4092120, 4774140, 5728968, 7161210, 9548280, 14322420, 28644840]

約数ペア:

[(1, 28644840), (2, 14322420), (3, 9548280), (4, 7161210), (5, 5728968), (6, 4774140), (7, 4092120), (8, 3580605), (9, 3182760), (10, 2864484), (12, 2387070), (14, 2046060), (15, 1909656), (18, 1591380), (20, 1432242), (21, 1364040), (24, 1193535), (27, 1060920), (28, 1023030), (30, 954828), (35, 818424), (36, 795690), (40, 716121), (42, 682020), (45, 636552), (54, 530460), (56, 511515), (60, 477414), (63, 454680), (70, 409212), (72, 397845), (81, 353640), (84, 341010), (90, 318276), (105, 272808), (108, 265230), (120, 238707), (126, 227340), (135, 212184), (140, 204606), (162, 176820), (168, 170505), (180, 159138), (189, 151560), (210, 136404), (216, 132615), (243, 117880), (252, 113670), (270, 106092), (280, 102303), (315, 90936), (324, 88410), (360, 79569), (378, 75780), (405, 70728), (420, 68202), (421, 68040), (486, 58940), (504, 56835), (540, 53046), (567, 50520), (630, 45468), (648, 44205), (756, 37890), (810, 35364), (840, 34101), (842, 34020), (945, 30312), (972, 29470), (1080, 26523), (1134, 25260), (1215, 23576), (1260, 22734), (1263, 22680), (1512, 18945), (1620, 17682), (1684, 17010), (1701, 16840), (1890, 15156), (1944, 14735), (2105, 13608), (2268, 12630), (2430, 11788), (2520, 11367), (2526, 11340), (2835, 10104), (2947, 9720), (3240, 8841), (3368, 8505), (3402, 8420), (3780, 7578), (3789, 7560), (4210, 6804), (4536, 6315), (4860, 5894), (5052, 5670)]