21679600

素因数分解:

$2^4\times 5^2\times {\mathrm{83}}^1\times {\mathrm{653}}^1$

素因数の和:754

約数の個数: 60

約数和(自身を含む): 52793496

約数和(自身を除く): 31113896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 83, 100, 166, 200, 332, 400, 415, 653, 664, 830, 1306, 1328, 1660, 2075, 2612, 3265, 3320, 4150, 5224, 6530, 6640, 8300, 10448, 13060, 16325, 16600, 26120, 32650, 33200, 52240, 54199, 65300, 108398, 130600, 216796, 261200, 270995, 433592, 541990, 867184, 1083980, 1354975, 2167960, 2709950, 4335920, 5419900, 10839800, 21679600]

約数ペア:

[(1, 21679600), (2, 10839800), (4, 5419900), (5, 4335920), (8, 2709950), (10, 2167960), (16, 1354975), (20, 1083980), (25, 867184), (40, 541990), (50, 433592), (80, 270995), (83, 261200), (100, 216796), (166, 130600), (200, 108398), (332, 65300), (400, 54199), (415, 52240), (653, 33200), (664, 32650), (830, 26120), (1306, 16600), (1328, 16325), (1660, 13060), (2075, 10448), (2612, 8300), (3265, 6640), (3320, 6530), (4150, 5224)]