121875560

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1\times {\mathrm{251}}^1$

素因数の和:522

約数の個数: 64

約数和(自身を含む): 281232000

約数和(自身を除く): 159356440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 199, 244, 251, 305, 398, 488, 502, 610, 796, 995, 1004, 1220, 1255, 1592, 1990, 2008, 2440, 2510, 3980, 5020, 7960, 10040, 12139, 15311, 24278, 30622, 48556, 49949, 60695, 61244, 76555, 97112, 99898, 121390, 122488, 153110, 199796, 242780, 249745, 306220, 399592, 485560, 499490, 612440, 998980, 1997960, 3046889, 6093778, 12187556, 15234445, 24375112, 30468890, 60937780, 121875560]

約数ペア:

[(1, 121875560), (2, 60937780), (4, 30468890), (5, 24375112), (8, 15234445), (10, 12187556), (20, 6093778), (40, 3046889), (61, 1997960), (122, 998980), (199, 612440), (244, 499490), (251, 485560), (305, 399592), (398, 306220), (488, 249745), (502, 242780), (610, 199796), (796, 153110), (995, 122488), (1004, 121390), (1220, 99898), (1255, 97112), (1592, 76555), (1990, 61244), (2008, 60695), (2440, 49949), (2510, 48556), (3980, 30622), (5020, 24278), (7960, 15311), (10040, 12139)]