21676560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{499}}^1$

素因数の和:696

約数の個数: 80

約数和(自身を含む): 67704000

約数和(自身を除く): 46027440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 181, 240, 362, 499, 543, 724, 905, 998, 1086, 1448, 1497, 1810, 1996, 2172, 2495, 2715, 2896, 2994, 3620, 3992, 4344, 4990, 5430, 5988, 7240, 7485, 7984, 8688, 9980, 10860, 11976, 14480, 14970, 19960, 21720, 23952, 29940, 39920, 43440, 59880, 90319, 119760, 180638, 270957, 361276, 451595, 541914, 722552, 903190, 1083828, 1354785, 1445104, 1806380, 2167656, 2709570, 3612760, 4335312, 5419140, 7225520, 10838280, 21676560]

約数ペア:

[(1, 21676560), (2, 10838280), (3, 7225520), (4, 5419140), (5, 4335312), (6, 3612760), (8, 2709570), (10, 2167656), (12, 1806380), (15, 1445104), (16, 1354785), (20, 1083828), (24, 903190), (30, 722552), (40, 541914), (48, 451595), (60, 361276), (80, 270957), (120, 180638), (181, 119760), (240, 90319), (362, 59880), (499, 43440), (543, 39920), (724, 29940), (905, 23952), (998, 21720), (1086, 19960), (1448, 14970), (1497, 14480), (1810, 11976), (1996, 10860), (2172, 9980), (2495, 8688), (2715, 7984), (2896, 7485), (2994, 7240), (3620, 5988), (3992, 5430), (4344, 4990)]