181235908

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1187}}^1$

素因数の和:1265

約数の個数: 72

約数和(自身を含む): 398170080

約数和(自身を除く): 216934172

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 41, 49, 76, 82, 98, 133, 164, 196, 266, 287, 532, 574, 779, 931, 1148, 1187, 1558, 1862, 2009, 2374, 3116, 3724, 4018, 4748, 5453, 8036, 8309, 10906, 16618, 21812, 22553, 33236, 38171, 45106, 48667, 58163, 76342, 90212, 97334, 116326, 152684, 157871, 194668, 232652, 315742, 340669, 631484, 681338, 924673, 1105097, 1362676, 1849346, 2210194, 2384683, 3698692, 4420388, 4769366, 6472711, 9538732, 12945422, 25890844, 45308977, 90617954, 181235908]

約数ペア:

[(1, 181235908), (2, 90617954), (4, 45308977), (7, 25890844), (14, 12945422), (19, 9538732), (28, 6472711), (38, 4769366), (41, 4420388), (49, 3698692), (76, 2384683), (82, 2210194), (98, 1849346), (133, 1362676), (164, 1105097), (196, 924673), (266, 681338), (287, 631484), (532, 340669), (574, 315742), (779, 232652), (931, 194668), (1148, 157871), (1187, 152684), (1558, 116326), (1862, 97334), (2009, 90212), (2374, 76342), (3116, 58163), (3724, 48667), (4018, 45106), (4748, 38171), (5453, 33236), (8036, 22553), (8309, 21812), (10906, 16618)]