201085520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{743}}^1$

素因数の和:972

約数の個数: 80

約数和(自身を含む): 498182400

約数和(自身を除く): 297096880

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 199, 272, 340, 398, 680, 743, 796, 995, 1360, 1486, 1592, 1990, 2972, 3184, 3383, 3715, 3980, 5944, 6766, 7430, 7960, 11888, 12631, 13532, 14860, 15920, 16915, 25262, 27064, 29720, 33830, 50524, 54128, 59440, 63155, 67660, 101048, 126310, 135320, 147857, 202096, 252620, 270640, 295714, 505240, 591428, 739285, 1010480, 1182856, 1478570, 2365712, 2513569, 2957140, 5027138, 5914280, 10054276, 11828560, 12567845, 20108552, 25135690, 40217104, 50271380, 100542760, 201085520]

約数ペア:

[(1, 201085520), (2, 100542760), (4, 50271380), (5, 40217104), (8, 25135690), (10, 20108552), (16, 12567845), (17, 11828560), (20, 10054276), (34, 5914280), (40, 5027138), (68, 2957140), (80, 2513569), (85, 2365712), (136, 1478570), (170, 1182856), (199, 1010480), (272, 739285), (340, 591428), (398, 505240), (680, 295714), (743, 270640), (796, 252620), (995, 202096), (1360, 147857), (1486, 135320), (1592, 126310), (1990, 101048), (2972, 67660), (3184, 63155), (3383, 59440), (3715, 54128), (3980, 50524), (5944, 33830), (6766, 29720), (7430, 27064), (7960, 25262), (11888, 16915), (12631, 15920), (13532, 14860)]