7788860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 17472000

約数和(自身を除く): 9683140

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 103, 190, 199, 206, 380, 398, 412, 515, 796, 995, 1030, 1957, 1990, 2060, 3781, 3914, 3980, 7562, 7828, 9785, 15124, 18905, 19570, 20497, 37810, 39140, 40994, 75620, 81988, 102485, 204970, 389443, 409940, 778886, 1557772, 1947215, 3894430, 7788860]

約数ペア:

[(1, 7788860), (2, 3894430), (4, 1947215), (5, 1557772), (10, 778886), (19, 409940), (20, 389443), (38, 204970), (76, 102485), (95, 81988), (103, 75620), (190, 40994), (199, 39140), (206, 37810), (380, 20497), (398, 19570), (412, 18905), (515, 15124), (796, 9785), (995, 7828), (1030, 7562), (1957, 3980), (1990, 3914), (2060, 3781)]