20087522

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:235

約数の個数: 64

約数和(自身を含む): 40346880

約数和(自身を除く): 20259358

約数列:

[1, 2, 7, 13, 14, 19, 26, 37, 38, 74, 91, 133, 157, 182, 247, 259, 266, 314, 481, 494, 518, 703, 962, 1099, 1406, 1729, 2041, 2198, 2983, 3367, 3458, 4082, 4921, 5809, 5966, 6734, 9139, 9842, 11618, 14287, 18278, 20881, 28574, 38779, 40663, 41762, 63973, 75517, 77558, 81326, 110371, 127946, 151034, 220742, 271453, 528619, 542906, 772597, 1057238, 1434823, 1545194, 2869646, 10043761, 20087522]

約数ペア:

[(1, 20087522), (2, 10043761), (7, 2869646), (13, 1545194), (14, 1434823), (19, 1057238), (26, 772597), (37, 542906), (38, 528619), (74, 271453), (91, 220742), (133, 151034), (157, 127946), (182, 110371), (247, 81326), (259, 77558), (266, 75517), (314, 63973), (481, 41762), (494, 40663), (518, 38779), (703, 28574), (962, 20881), (1099, 18278), (1406, 14287), (1729, 11618), (2041, 9842), (2198, 9139), (2983, 6734), (3367, 5966), (3458, 5809), (4082, 4921)]