28760120

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{727}}^1$

素因数の和:804

約数の個数: 64

約数和(自身を含む): 69189120

約数和(自身を除く): 40429000

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 43, 46, 86, 92, 115, 172, 184, 215, 230, 344, 430, 460, 727, 860, 920, 989, 1454, 1720, 1978, 2908, 3635, 3956, 4945, 5816, 7270, 7912, 9890, 14540, 16721, 19780, 29080, 31261, 33442, 39560, 62522, 66884, 83605, 125044, 133768, 156305, 167210, 250088, 312610, 334420, 625220, 668840, 719003, 1250440, 1438006, 2876012, 3595015, 5752024, 7190030, 14380060, 28760120]

約数ペア:

[(1, 28760120), (2, 14380060), (4, 7190030), (5, 5752024), (8, 3595015), (10, 2876012), (20, 1438006), (23, 1250440), (40, 719003), (43, 668840), (46, 625220), (86, 334420), (92, 312610), (115, 250088), (172, 167210), (184, 156305), (215, 133768), (230, 125044), (344, 83605), (430, 66884), (460, 62522), (727, 39560), (860, 33442), (920, 31261), (989, 29080), (1454, 19780), (1720, 16721), (1978, 14540), (2908, 9890), (3635, 7912), (3956, 7270), (4945, 5816)]