1287760180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{257}}^1\times {\mathrm{5113}}^1$

素因数の和:5393

約数の個数: 72

約数和(自身を含む): 3158672328

約数和(自身を除く): 1870912148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 257, 490, 514, 980, 1028, 1285, 1799, 2570, 3598, 5113, 5140, 7196, 8995, 10226, 12593, 17990, 20452, 25186, 25565, 35791, 35980, 50372, 51130, 62965, 71582, 102260, 125930, 143164, 178955, 250537, 251860, 357910, 501074, 715820, 1002148, 1252685, 1314041, 2505370, 2628082, 5010740, 5256164, 6570205, 9198287, 13140410, 18396574, 26280820, 36793148, 45991435, 64388009, 91982870, 128776018, 183965740, 257552036, 321940045, 643880090, 1287760180]

約数ペア:

[(1, 1287760180), (2, 643880090), (4, 321940045), (5, 257552036), (7, 183965740), (10, 128776018), (14, 91982870), (20, 64388009), (28, 45991435), (35, 36793148), (49, 26280820), (70, 18396574), (98, 13140410), (140, 9198287), (196, 6570205), (245, 5256164), (257, 5010740), (490, 2628082), (514, 2505370), (980, 1314041), (1028, 1252685), (1285, 1002148), (1799, 715820), (2570, 501074), (3598, 357910), (5113, 251860), (5140, 250537), (7196, 178955), (8995, 143164), (10226, 125930), (12593, 102260), (17990, 71582), (20452, 62965), (25186, 51130), (25565, 50372), (35791, 35980)]