178194420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{16229}}^1$

素因数の和:16305

約数の個数: 72

約数和(自身を含む): 549417960

約数和(自身を除く): 371223540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2745, 3660, 5490, 10980, 16229, 32458, 48687, 64916, 81145, 97374, 146061, 162290, 194748, 243435, 292122, 324580, 486870, 584244, 730305, 973740, 989969, 1460610, 1979938, 2921220, 2969907, 3959876, 4949845, 5939814, 8909721, 9899690, 11879628, 14849535, 17819442, 19799380, 29699070, 35638884, 44548605, 59398140, 89097210, 178194420]

約数ペア:

[(1, 178194420), (2, 89097210), (3, 59398140), (4, 44548605), (5, 35638884), (6, 29699070), (9, 19799380), (10, 17819442), (12, 14849535), (15, 11879628), (18, 9899690), (20, 8909721), (30, 5939814), (36, 4949845), (45, 3959876), (60, 2969907), (61, 2921220), (90, 1979938), (122, 1460610), (180, 989969), (183, 973740), (244, 730305), (305, 584244), (366, 486870), (549, 324580), (610, 292122), (732, 243435), (915, 194748), (1098, 162290), (1220, 146061), (1830, 97374), (2196, 81145), (2745, 64916), (3660, 48687), (5490, 32458), (10980, 16229)]