81508252

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1\times {\mathrm{439}}^1$

素因数の和:818

約数の個数: 48

約数和(自身を含む): 172480000

約数和(自身を除く): 90971748

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 349, 439, 532, 698, 878, 1396, 1756, 2443, 3073, 4886, 6146, 6631, 8341, 9772, 12292, 13262, 16682, 26524, 33364, 46417, 58387, 92834, 116774, 153211, 185668, 233548, 306422, 612844, 1072477, 2144954, 2911009, 4289908, 5822018, 11644036, 20377063, 40754126, 81508252]

約数ペア:

[(1, 81508252), (2, 40754126), (4, 20377063), (7, 11644036), (14, 5822018), (19, 4289908), (28, 2911009), (38, 2144954), (76, 1072477), (133, 612844), (266, 306422), (349, 233548), (439, 185668), (532, 153211), (698, 116774), (878, 92834), (1396, 58387), (1756, 46417), (2443, 33364), (3073, 26524), (4886, 16682), (6146, 13262), (6631, 12292), (8341, 9772)]