21272160

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1$

素因数の和:525

約数の個数: 192

約数和(自身を含む): 82639872

約数和(自身を除く): 61367712

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 32, 35, 39, 40, 42, 48, 52, 56, 60, 65, 70, 78, 80, 84, 91, 96, 104, 105, 112, 120, 130, 140, 156, 160, 168, 182, 195, 208, 210, 224, 240, 260, 273, 280, 312, 336, 364, 390, 416, 420, 455, 480, 487, 520, 546, 560, 624, 672, 728, 780, 840, 910, 974, 1040, 1092, 1120, 1248, 1365, 1456, 1461, 1560, 1680, 1820, 1948, 2080, 2184, 2435, 2730, 2912, 2922, 3120, 3360, 3409, 3640, 3896, 4368, 4870, 5460, 5844, 6240, 6331, 6818, 7280, 7305, 7792, 8736, 9740, 10227, 10920, 11688, 12662, 13636, 14560, 14610, 15584, 17045, 18993, 19480, 20454, 21840, 23376, 25324, 27272, 29220, 31655, 34090, 37986, 38960, 40908, 43680, 44317, 46752, 50648, 51135, 54544, 58440, 63310, 68180, 75972, 77920, 81816, 88634, 94965, 101296, 102270, 109088, 116880, 126620, 132951, 136360, 151944, 163632, 177268, 189930, 202592, 204540, 221585, 233760, 253240, 265902, 272720, 303888, 327264, 354536, 379860, 409080, 443170, 506480, 531804, 545440, 607776, 664755, 709072, 759720, 818160, 886340, 1012960, 1063608, 1329510, 1418144, 1519440, 1636320, 1772680, 2127216, 2659020, 3038880, 3545360, 4254432, 5318040, 7090720, 10636080, 21272160]

約数ペア:

[(1, 21272160), (2, 10636080), (3, 7090720), (4, 5318040), (5, 4254432), (6, 3545360), (7, 3038880), (8, 2659020), (10, 2127216), (12, 1772680), (13, 1636320), (14, 1519440), (15, 1418144), (16, 1329510), (20, 1063608), (21, 1012960), (24, 886340), (26, 818160), (28, 759720), (30, 709072), (32, 664755), (35, 607776), (39, 545440), (40, 531804), (42, 506480), (48, 443170), (52, 409080), (56, 379860), (60, 354536), (65, 327264), (70, 303888), (78, 272720), (80, 265902), (84, 253240), (91, 233760), (96, 221585), (104, 204540), (105, 202592), (112, 189930), (120, 177268), (130, 163632), (140, 151944), (156, 136360), (160, 132951), (168, 126620), (182, 116880), (195, 109088), (208, 102270), (210, 101296), (224, 94965), (240, 88634), (260, 81816), (273, 77920), (280, 75972), (312, 68180), (336, 63310), (364, 58440), (390, 54544), (416, 51135), (420, 50648), (455, 46752), (480, 44317), (487, 43680), (520, 40908), (546, 38960), (560, 37986), (624, 34090), (672, 31655), (728, 29220), (780, 27272), (840, 25324), (910, 23376), (974, 21840), (1040, 20454), (1092, 19480), (1120, 18993), (1248, 17045), (1365, 15584), (1456, 14610), (1461, 14560), (1560, 13636), (1680, 12662), (1820, 11688), (1948, 10920), (2080, 10227), (2184, 9740), (2435, 8736), (2730, 7792), (2912, 7305), (2922, 7280), (3120, 6818), (3360, 6331), (3409, 6240), (3640, 5844), (3896, 5460), (4368, 4870)]