656616540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1\times {\mathrm{601}}^1$

素因数の和:883

約数の個数: 96

約数和(自身を含む): 1868993280

約数和(自身を除く): 1212376740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 131, 139, 262, 278, 393, 417, 524, 556, 601, 655, 695, 786, 834, 1202, 1310, 1390, 1572, 1668, 1803, 1965, 2085, 2404, 2620, 2780, 3005, 3606, 3930, 4170, 6010, 7212, 7860, 8340, 9015, 12020, 18030, 18209, 36060, 36418, 54627, 72836, 78731, 83539, 91045, 109254, 157462, 167078, 182090, 218508, 236193, 250617, 273135, 314924, 334156, 364180, 393655, 417695, 472386, 501234, 546270, 787310, 835390, 944772, 1002468, 1092540, 1180965, 1253085, 1574620, 1670780, 2361930, 2506170, 4723860, 5012340, 10943609, 21887218, 32830827, 43774436, 54718045, 65661654, 109436090, 131323308, 164154135, 218872180, 328308270, 656616540]

約数ペア:

[(1, 656616540), (2, 328308270), (3, 218872180), (4, 164154135), (5, 131323308), (6, 109436090), (10, 65661654), (12, 54718045), (15, 43774436), (20, 32830827), (30, 21887218), (60, 10943609), (131, 5012340), (139, 4723860), (262, 2506170), (278, 2361930), (393, 1670780), (417, 1574620), (524, 1253085), (556, 1180965), (601, 1092540), (655, 1002468), (695, 944772), (786, 835390), (834, 787310), (1202, 546270), (1310, 501234), (1390, 472386), (1572, 417695), (1668, 393655), (1803, 364180), (1965, 334156), (2085, 314924), (2404, 273135), (2620, 250617), (2780, 236193), (3005, 218508), (3606, 182090), (3930, 167078), (4170, 157462), (6010, 109254), (7212, 91045), (7860, 83539), (8340, 78731), (9015, 72836), (12020, 54627), (18030, 36418), (18209, 36060)]