21490320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{593}}^1$

素因数の和:760

約数の個数: 80

約数和(自身を含む): 67174272

約数和(自身を除く): 45683952

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 151, 240, 302, 453, 593, 604, 755, 906, 1186, 1208, 1510, 1779, 1812, 2265, 2372, 2416, 2965, 3020, 3558, 3624, 4530, 4744, 5930, 6040, 7116, 7248, 8895, 9060, 9488, 11860, 12080, 14232, 17790, 18120, 23720, 28464, 35580, 36240, 47440, 71160, 89543, 142320, 179086, 268629, 358172, 447715, 537258, 716344, 895430, 1074516, 1343145, 1432688, 1790860, 2149032, 2686290, 3581720, 4298064, 5372580, 7163440, 10745160, 21490320]

約数ペア:

[(1, 21490320), (2, 10745160), (3, 7163440), (4, 5372580), (5, 4298064), (6, 3581720), (8, 2686290), (10, 2149032), (12, 1790860), (15, 1432688), (16, 1343145), (20, 1074516), (24, 895430), (30, 716344), (40, 537258), (48, 447715), (60, 358172), (80, 268629), (120, 179086), (151, 142320), (240, 89543), (302, 71160), (453, 47440), (593, 36240), (604, 35580), (755, 28464), (906, 23720), (1186, 18120), (1208, 17790), (1510, 14232), (1779, 12080), (1812, 11860), (2265, 9488), (2372, 9060), (2416, 8895), (2965, 7248), (3020, 7116), (3558, 6040), (3624, 5930), (4530, 4744)]