21856560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{487}}^1$

素因数の和:531

約数の個数: 160

約数和(自身を含む): 78423552

約数和(自身を除く): 56566992

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 17, 20, 22, 24, 30, 33, 34, 40, 44, 48, 51, 55, 60, 66, 68, 80, 85, 88, 102, 110, 120, 132, 136, 165, 170, 176, 187, 204, 220, 240, 255, 264, 272, 330, 340, 374, 408, 440, 487, 510, 528, 561, 660, 680, 748, 816, 880, 935, 974, 1020, 1122, 1320, 1360, 1461, 1496, 1870, 1948, 2040, 2244, 2435, 2640, 2805, 2922, 2992, 3740, 3896, 4080, 4488, 4870, 5357, 5610, 5844, 7305, 7480, 7792, 8279, 8976, 9740, 10714, 11220, 11688, 14610, 14960, 16071, 16558, 19480, 21428, 22440, 23376, 24837, 26785, 29220, 32142, 33116, 38960, 41395, 42856, 44880, 49674, 53570, 58440, 64284, 66232, 80355, 82790, 85712, 91069, 99348, 107140, 116880, 124185, 128568, 132464, 160710, 165580, 182138, 198696, 214280, 248370, 257136, 273207, 321420, 331160, 364276, 397392, 428560, 455345, 496740, 546414, 642840, 662320, 728552, 910690, 993480, 1092828, 1285680, 1366035, 1457104, 1821380, 1986960, 2185656, 2732070, 3642760, 4371312, 5464140, 7285520, 10928280, 21856560]

約数ペア:

[(1, 21856560), (2, 10928280), (3, 7285520), (4, 5464140), (5, 4371312), (6, 3642760), (8, 2732070), (10, 2185656), (11, 1986960), (12, 1821380), (15, 1457104), (16, 1366035), (17, 1285680), (20, 1092828), (22, 993480), (24, 910690), (30, 728552), (33, 662320), (34, 642840), (40, 546414), (44, 496740), (48, 455345), (51, 428560), (55, 397392), (60, 364276), (66, 331160), (68, 321420), (80, 273207), (85, 257136), (88, 248370), (102, 214280), (110, 198696), (120, 182138), (132, 165580), (136, 160710), (165, 132464), (170, 128568), (176, 124185), (187, 116880), (204, 107140), (220, 99348), (240, 91069), (255, 85712), (264, 82790), (272, 80355), (330, 66232), (340, 64284), (374, 58440), (408, 53570), (440, 49674), (487, 44880), (510, 42856), (528, 41395), (561, 38960), (660, 33116), (680, 32142), (748, 29220), (816, 26785), (880, 24837), (935, 23376), (974, 22440), (1020, 21428), (1122, 19480), (1320, 16558), (1360, 16071), (1461, 14960), (1496, 14610), (1870, 11688), (1948, 11220), (2040, 10714), (2244, 9740), (2435, 8976), (2640, 8279), (2805, 7792), (2922, 7480), (2992, 7305), (3740, 5844), (3896, 5610), (4080, 5357), (4488, 4870)]