21767760

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{617}}^1$

素因数の和:650

約数の個数: 180

約数和(自身を含む): 85176468

約数和(自身を除く): 63408708

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 360, 392, 420, 441, 490, 504, 560, 588, 617, 630, 720, 735, 784, 840, 882, 980, 1008, 1176, 1234, 1260, 1470, 1680, 1764, 1851, 1960, 2205, 2352, 2468, 2520, 2940, 3085, 3528, 3702, 3920, 4319, 4410, 4936, 5040, 5553, 5880, 6170, 7056, 7404, 8638, 8820, 9255, 9872, 11106, 11760, 12340, 12957, 14808, 17276, 17640, 18510, 21595, 22212, 24680, 25914, 27765, 29616, 30233, 34552, 35280, 37020, 38871, 43190, 44424, 49360, 51828, 55530, 60466, 64785, 69104, 74040, 77742, 86380, 88848, 90699, 103656, 111060, 120932, 129570, 148080, 151165, 155484, 172760, 181398, 194355, 207312, 222120, 241864, 259140, 272097, 302330, 310968, 345520, 362796, 388710, 444240, 453495, 483728, 518280, 544194, 604660, 621936, 725592, 777420, 906990, 1036560, 1088388, 1209320, 1360485, 1451184, 1554840, 1813980, 2176776, 2418640, 2720970, 3109680, 3627960, 4353552, 5441940, 7255920, 10883880, 21767760]

約数ペア:

[(1, 21767760), (2, 10883880), (3, 7255920), (4, 5441940), (5, 4353552), (6, 3627960), (7, 3109680), (8, 2720970), (9, 2418640), (10, 2176776), (12, 1813980), (14, 1554840), (15, 1451184), (16, 1360485), (18, 1209320), (20, 1088388), (21, 1036560), (24, 906990), (28, 777420), (30, 725592), (35, 621936), (36, 604660), (40, 544194), (42, 518280), (45, 483728), (48, 453495), (49, 444240), (56, 388710), (60, 362796), (63, 345520), (70, 310968), (72, 302330), (80, 272097), (84, 259140), (90, 241864), (98, 222120), (105, 207312), (112, 194355), (120, 181398), (126, 172760), (140, 155484), (144, 151165), (147, 148080), (168, 129570), (180, 120932), (196, 111060), (210, 103656), (240, 90699), (245, 88848), (252, 86380), (280, 77742), (294, 74040), (315, 69104), (336, 64785), (360, 60466), (392, 55530), (420, 51828), (441, 49360), (490, 44424), (504, 43190), (560, 38871), (588, 37020), (617, 35280), (630, 34552), (720, 30233), (735, 29616), (784, 27765), (840, 25914), (882, 24680), (980, 22212), (1008, 21595), (1176, 18510), (1234, 17640), (1260, 17276), (1470, 14808), (1680, 12957), (1764, 12340), (1851, 11760), (1960, 11106), (2205, 9872), (2352, 9255), (2468, 8820), (2520, 8638), (2940, 7404), (3085, 7056), (3528, 6170), (3702, 5880), (3920, 5553), (4319, 5040), (4410, 4936)]