311993920

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4493}}^1$

素因数の和:4548

約数の個数: 112

約数和(自身を含む): 876653568

約数和(自身を除く): 564659648

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 140, 155, 160, 217, 224, 248, 280, 310, 320, 434, 448, 496, 560, 620, 868, 992, 1085, 1120, 1240, 1736, 1984, 2170, 2240, 2480, 3472, 4340, 4493, 4960, 6944, 8680, 8986, 9920, 13888, 17360, 17972, 22465, 31451, 34720, 35944, 44930, 62902, 69440, 71888, 89860, 125804, 139283, 143776, 157255, 179720, 251608, 278566, 287552, 314510, 359440, 503216, 557132, 629020, 696415, 718880, 974981, 1006432, 1114264, 1258040, 1392830, 1437760, 1949962, 2012864, 2228528, 2516080, 2785660, 3899924, 4457056, 4874905, 5032160, 5571320, 7799848, 8914112, 9749810, 10064320, 11142640, 15599696, 19499620, 22285280, 31199392, 38999240, 44570560, 62398784, 77998480, 155996960, 311993920]

約数ペア:

[(1, 311993920), (2, 155996960), (4, 77998480), (5, 62398784), (7, 44570560), (8, 38999240), (10, 31199392), (14, 22285280), (16, 19499620), (20, 15599696), (28, 11142640), (31, 10064320), (32, 9749810), (35, 8914112), (40, 7799848), (56, 5571320), (62, 5032160), (64, 4874905), (70, 4457056), (80, 3899924), (112, 2785660), (124, 2516080), (140, 2228528), (155, 2012864), (160, 1949962), (217, 1437760), (224, 1392830), (248, 1258040), (280, 1114264), (310, 1006432), (320, 974981), (434, 718880), (448, 696415), (496, 629020), (560, 557132), (620, 503216), (868, 359440), (992, 314510), (1085, 287552), (1120, 278566), (1240, 251608), (1736, 179720), (1984, 157255), (2170, 143776), (2240, 139283), (2480, 125804), (3472, 89860), (4340, 71888), (4493, 69440), (4960, 62902), (6944, 44930), (8680, 35944), (8986, 34720), (9920, 31451), (13888, 22465), (17360, 17972)]