20252974

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:257

約数の個数: 48

約数和(自身を含む): 37962000

約数和(自身を除く): 17709026

約数列:

[1, 2, 7, 14, 19, 38, 49, 73, 98, 133, 146, 149, 266, 298, 511, 931, 1022, 1043, 1387, 1862, 2086, 2774, 2831, 3577, 5662, 7154, 7301, 9709, 10877, 14602, 19418, 19817, 21754, 39634, 67963, 76139, 135926, 138719, 152278, 206663, 277438, 413326, 532973, 1065946, 1446641, 2893282, 10126487, 20252974]

約数ペア:

[(1, 20252974), (2, 10126487), (7, 2893282), (14, 1446641), (19, 1065946), (38, 532973), (49, 413326), (73, 277438), (98, 206663), (133, 152278), (146, 138719), (149, 135926), (266, 76139), (298, 67963), (511, 39634), (931, 21754), (1022, 19817), (1043, 19418), (1387, 14602), (1862, 10877), (2086, 9709), (2774, 7301), (2831, 7154), (3577, 5662)]