87561040

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{3191}}^1$

素因数の和:3225

約数の個数: 80

約数和(自身を含む): 237484800

約数和(自身を除く): 149923760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1372, 1715, 1960, 2744, 3191, 3430, 3920, 5488, 6382, 6860, 12764, 13720, 15955, 22337, 25528, 27440, 31910, 44674, 51056, 63820, 89348, 111685, 127640, 156359, 178696, 223370, 255280, 312718, 357392, 446740, 625436, 781795, 893480, 1094513, 1250872, 1563590, 1786960, 2189026, 2501744, 3127180, 4378052, 5472565, 6254360, 8756104, 10945130, 12508720, 17512208, 21890260, 43780520, 87561040]

約数ペア:

[(1, 87561040), (2, 43780520), (4, 21890260), (5, 17512208), (7, 12508720), (8, 10945130), (10, 8756104), (14, 6254360), (16, 5472565), (20, 4378052), (28, 3127180), (35, 2501744), (40, 2189026), (49, 1786960), (56, 1563590), (70, 1250872), (80, 1094513), (98, 893480), (112, 781795), (140, 625436), (196, 446740), (245, 357392), (280, 312718), (343, 255280), (392, 223370), (490, 178696), (560, 156359), (686, 127640), (784, 111685), (980, 89348), (1372, 63820), (1715, 51056), (1960, 44674), (2744, 31910), (3191, 27440), (3430, 25528), (3920, 22337), (5488, 15955), (6382, 13720), (6860, 12764)]