128753954

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{547}}^1$

素因数の和:639

約数の個数: 64

約数和(自身を含む): 249993216

約数和(自身を除く): 121239262

約数列:

[1, 2, 7, 14, 17, 23, 34, 43, 46, 86, 119, 161, 238, 301, 322, 391, 547, 602, 731, 782, 989, 1094, 1462, 1978, 2737, 3829, 5117, 5474, 6923, 7658, 9299, 10234, 12581, 13846, 16813, 18598, 23521, 25162, 33626, 47042, 65093, 88067, 117691, 130186, 164647, 176134, 213877, 235382, 329294, 399857, 427754, 540983, 799714, 1081966, 1497139, 2798999, 2994278, 3786881, 5597998, 7573762, 9196711, 18393422, 64376977, 128753954]

約数ペア:

[(1, 128753954), (2, 64376977), (7, 18393422), (14, 9196711), (17, 7573762), (23, 5597998), (34, 3786881), (43, 2994278), (46, 2798999), (86, 1497139), (119, 1081966), (161, 799714), (238, 540983), (301, 427754), (322, 399857), (391, 329294), (547, 235382), (602, 213877), (731, 176134), (782, 164647), (989, 130186), (1094, 117691), (1462, 88067), (1978, 65093), (2737, 47042), (3829, 33626), (5117, 25162), (5474, 23521), (6923, 18598), (7658, 16813), (9299, 13846), (10234, 12581)]