256497808

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{503}}^1$

素因数の和:704

約数の個数: 80

約数和(自身を含む): 592462080

約数和(自身を除く): 335964272

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 56, 58, 112, 116, 157, 203, 232, 314, 406, 464, 503, 628, 812, 1006, 1099, 1256, 1624, 2012, 2198, 2512, 3248, 3521, 4024, 4396, 4553, 7042, 8048, 8792, 9106, 14084, 14587, 17584, 18212, 28168, 29174, 31871, 36424, 56336, 58348, 63742, 72848, 78971, 102109, 116696, 127484, 157942, 204218, 233392, 254968, 315884, 408436, 509936, 552797, 631768, 816872, 1105594, 1263536, 1633744, 2211188, 2290159, 4422376, 4580318, 8844752, 9160636, 16031113, 18321272, 32062226, 36642544, 64124452, 128248904, 256497808]

約数ペア:

[(1, 256497808), (2, 128248904), (4, 64124452), (7, 36642544), (8, 32062226), (14, 18321272), (16, 16031113), (28, 9160636), (29, 8844752), (56, 4580318), (58, 4422376), (112, 2290159), (116, 2211188), (157, 1633744), (203, 1263536), (232, 1105594), (314, 816872), (406, 631768), (464, 552797), (503, 509936), (628, 408436), (812, 315884), (1006, 254968), (1099, 233392), (1256, 204218), (1624, 157942), (2012, 127484), (2198, 116696), (2512, 102109), (3248, 78971), (3521, 72848), (4024, 63742), (4396, 58348), (4553, 56336), (7042, 36424), (8048, 31871), (8792, 29174), (9106, 28168), (14084, 18212), (14587, 17584)]