15577720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1$

素因数の和:332

約数の個数: 64

約数和(自身を含む): 37440000

約数和(自身を除く): 21862280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 103, 152, 190, 199, 206, 380, 398, 412, 515, 760, 796, 824, 995, 1030, 1592, 1957, 1990, 2060, 3781, 3914, 3980, 4120, 7562, 7828, 7960, 9785, 15124, 15656, 18905, 19570, 20497, 30248, 37810, 39140, 40994, 75620, 78280, 81988, 102485, 151240, 163976, 204970, 389443, 409940, 778886, 819880, 1557772, 1947215, 3115544, 3894430, 7788860, 15577720]

約数ペア:

[(1, 15577720), (2, 7788860), (4, 3894430), (5, 3115544), (8, 1947215), (10, 1557772), (19, 819880), (20, 778886), (38, 409940), (40, 389443), (76, 204970), (95, 163976), (103, 151240), (152, 102485), (190, 81988), (199, 78280), (206, 75620), (380, 40994), (398, 39140), (412, 37810), (515, 30248), (760, 20497), (796, 19570), (824, 18905), (995, 15656), (1030, 15124), (1592, 9785), (1957, 7960), (1990, 7828), (2060, 7562), (3781, 4120), (3914, 3980)]