19564528

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{463}}^1$

素因数の和:629

約数の個数: 40

約数和(自身を含む): 40275200

約数和(自身を除く): 20710672

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 139, 152, 278, 304, 463, 556, 926, 1112, 1852, 2224, 2641, 3704, 5282, 7408, 8797, 10564, 17594, 21128, 35188, 42256, 64357, 70376, 128714, 140752, 257428, 514856, 1029712, 1222783, 2445566, 4891132, 9782264, 19564528]

約数ペア:

[(1, 19564528), (2, 9782264), (4, 4891132), (8, 2445566), (16, 1222783), (19, 1029712), (38, 514856), (76, 257428), (139, 140752), (152, 128714), (278, 70376), (304, 64357), (463, 42256), (556, 35188), (926, 21128), (1112, 17594), (1852, 10564), (2224, 8797), (2641, 7408), (3704, 5282)]