318480400

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{16249}}^1$

素因数の和:16281

約数の個数: 90

約数和(自身を含む): 890126250

約数和(自身を除く): 571645850

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 175, 196, 200, 245, 280, 350, 392, 400, 490, 560, 700, 784, 980, 1225, 1400, 1960, 2450, 2800, 3920, 4900, 9800, 16249, 19600, 32498, 64996, 81245, 113743, 129992, 162490, 227486, 259984, 324980, 406225, 454972, 568715, 649960, 796201, 812450, 909944, 1137430, 1299920, 1592402, 1624900, 1819888, 2274860, 2843575, 3184804, 3249800, 3981005, 4549720, 5687150, 6369608, 6499600, 7962010, 9099440, 11374300, 12739216, 15924020, 19905025, 22748600, 31848040, 39810050, 45497200, 63696080, 79620100, 159240200, 318480400]

約数ペア:

[(1, 318480400), (2, 159240200), (4, 79620100), (5, 63696080), (7, 45497200), (8, 39810050), (10, 31848040), (14, 22748600), (16, 19905025), (20, 15924020), (25, 12739216), (28, 11374300), (35, 9099440), (40, 7962010), (49, 6499600), (50, 6369608), (56, 5687150), (70, 4549720), (80, 3981005), (98, 3249800), (100, 3184804), (112, 2843575), (140, 2274860), (175, 1819888), (196, 1624900), (200, 1592402), (245, 1299920), (280, 1137430), (350, 909944), (392, 812450), (400, 796201), (490, 649960), (560, 568715), (700, 454972), (784, 406225), (980, 324980), (1225, 259984), (1400, 227486), (1960, 162490), (2450, 129992), (2800, 113743), (3920, 81245), (4900, 64996), (9800, 32498), (16249, 19600)]