131728866

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{281}}^1$

素因数の和:431

約数の個数: 64

約数和(自身を含む): 285880320

約数和(自身を除く): 154151454

約数列:

[1, 2, 3, 6, 23, 43, 46, 69, 79, 86, 129, 138, 158, 237, 258, 281, 474, 562, 843, 989, 1686, 1817, 1978, 2967, 3397, 3634, 5451, 5934, 6463, 6794, 10191, 10902, 12083, 12926, 19389, 20382, 22199, 24166, 36249, 38778, 44398, 66597, 72498, 78131, 133194, 156262, 234393, 277909, 468786, 510577, 555818, 833727, 954557, 1021154, 1531731, 1667454, 1909114, 2863671, 3063462, 5727342, 21954811, 43909622, 65864433, 131728866]

約数ペア:

[(1, 131728866), (2, 65864433), (3, 43909622), (6, 21954811), (23, 5727342), (43, 3063462), (46, 2863671), (69, 1909114), (79, 1667454), (86, 1531731), (129, 1021154), (138, 954557), (158, 833727), (237, 555818), (258, 510577), (281, 468786), (474, 277909), (562, 234393), (843, 156262), (989, 133194), (1686, 78131), (1817, 72498), (1978, 66597), (2967, 44398), (3397, 38778), (3634, 36249), (5451, 24166), (5934, 22199), (6463, 20382), (6794, 19389), (10191, 12926), (10902, 12083)]