1340440899

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1\times {\mathrm{353}}^1$

素因数の和:720

約数の個数: 64

約数和(自身を含む): 2232975360

約数和(自身を除く): 892534461

約数列:

[1, 3, 7, 19, 21, 31, 57, 93, 133, 217, 307, 353, 399, 589, 651, 921, 1059, 1767, 2149, 2471, 4123, 5833, 6447, 6707, 7413, 9517, 10943, 12369, 17499, 20121, 28551, 32829, 40831, 46949, 66619, 76601, 108371, 122493, 140847, 180823, 199857, 207917, 229803, 325113, 542469, 623751, 758597, 1265761, 1455419, 2059049, 2275791, 3359501, 3797283, 4366257, 6177147, 10078503, 14413343, 23516507, 43240029, 63830519, 70549521, 191491557, 446813633, 1340440899]

約数ペア:

[(1, 1340440899), (3, 446813633), (7, 191491557), (19, 70549521), (21, 63830519), (31, 43240029), (57, 23516507), (93, 14413343), (133, 10078503), (217, 6177147), (307, 4366257), (353, 3797283), (399, 3359501), (589, 2275791), (651, 2059049), (921, 1455419), (1059, 1265761), (1767, 758597), (2149, 623751), (2471, 542469), (4123, 325113), (5833, 229803), (6447, 207917), (6707, 199857), (7413, 180823), (9517, 140847), (10943, 122493), (12369, 108371), (17499, 76601), (20121, 66619), (28551, 46949), (32829, 40831)]