21657200

素因数分解:

$2^4\times 5^2\times {\mathrm{29}}^1\times {\mathrm{1867}}^1$

素因数の和:1914

約数の個数: 60

約数和(自身を含む): 53854440

約数和(自身を除く): 32197240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 40, 50, 58, 80, 100, 116, 145, 200, 232, 290, 400, 464, 580, 725, 1160, 1450, 1867, 2320, 2900, 3734, 5800, 7468, 9335, 11600, 14936, 18670, 29872, 37340, 46675, 54143, 74680, 93350, 108286, 149360, 186700, 216572, 270715, 373400, 433144, 541430, 746800, 866288, 1082860, 1353575, 2165720, 2707150, 4331440, 5414300, 10828600, 21657200]

約数ペア:

[(1, 21657200), (2, 10828600), (4, 5414300), (5, 4331440), (8, 2707150), (10, 2165720), (16, 1353575), (20, 1082860), (25, 866288), (29, 746800), (40, 541430), (50, 433144), (58, 373400), (80, 270715), (100, 216572), (116, 186700), (145, 149360), (200, 108286), (232, 93350), (290, 74680), (400, 54143), (464, 46675), (580, 37340), (725, 29872), (1160, 18670), (1450, 14936), (1867, 11600), (2320, 9335), (2900, 7468), (3734, 5800)]