65591320

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:448

約数の個数: 64

約数和(自身を含む): 152409600

約数和(自身を除く): 86818280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 139, 188, 235, 251, 278, 376, 470, 502, 556, 695, 940, 1004, 1112, 1255, 1390, 1880, 2008, 2510, 2780, 5020, 5560, 6533, 10040, 11797, 13066, 23594, 26132, 32665, 34889, 47188, 52264, 58985, 65330, 69778, 94376, 117970, 130660, 139556, 174445, 235940, 261320, 279112, 348890, 471880, 697780, 1395560, 1639783, 3279566, 6559132, 8198915, 13118264, 16397830, 32795660, 65591320]

約数ペア:

[(1, 65591320), (2, 32795660), (4, 16397830), (5, 13118264), (8, 8198915), (10, 6559132), (20, 3279566), (40, 1639783), (47, 1395560), (94, 697780), (139, 471880), (188, 348890), (235, 279112), (251, 261320), (278, 235940), (376, 174445), (470, 139556), (502, 130660), (556, 117970), (695, 94376), (940, 69778), (1004, 65330), (1112, 58985), (1255, 52264), (1390, 47188), (1880, 34889), (2008, 32665), (2510, 26132), (2780, 23594), (5020, 13066), (5560, 11797), (6533, 10040)]