81619132

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{313}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 167399680

約数和(自身を除く): 85780548

約数列:

[1, 2, 4, 7, 14, 28, 67, 134, 139, 268, 278, 313, 469, 556, 626, 938, 973, 1252, 1876, 1946, 2191, 3892, 4382, 8764, 9313, 18626, 20971, 37252, 41942, 43507, 65191, 83884, 87014, 130382, 146797, 174028, 260764, 293594, 304549, 587188, 609098, 1218196, 2914969, 5829938, 11659876, 20404783, 40809566, 81619132]

約数ペア:

[(1, 81619132), (2, 40809566), (4, 20404783), (7, 11659876), (14, 5829938), (28, 2914969), (67, 1218196), (134, 609098), (139, 587188), (268, 304549), (278, 293594), (313, 260764), (469, 174028), (556, 146797), (626, 130382), (938, 87014), (973, 83884), (1252, 65191), (1876, 43507), (1946, 41942), (2191, 37252), (3892, 20971), (4382, 18626), (8764, 9313)]