263086720

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{307}}^1$

素因数の和:442

約数の個数: 128

約数和(自身を含む): 686125440

約数和(自身を除く): 423038720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 103, 104, 128, 130, 160, 206, 208, 260, 307, 320, 412, 416, 515, 520, 614, 640, 824, 832, 1030, 1040, 1228, 1339, 1535, 1648, 1664, 2060, 2080, 2456, 2678, 3070, 3296, 3991, 4120, 4160, 4912, 5356, 6140, 6592, 6695, 7982, 8240, 8320, 9824, 10712, 12280, 13184, 13390, 15964, 16480, 19648, 19955, 21424, 24560, 26780, 31621, 31928, 32960, 39296, 39910, 42848, 49120, 53560, 63242, 63856, 65920, 79820, 85696, 98240, 107120, 126484, 127712, 158105, 159640, 171392, 196480, 214240, 252968, 255424, 316210, 319280, 411073, 428480, 505936, 510848, 632420, 638560, 822146, 856960, 1011872, 1264840, 1277120, 1644292, 2023744, 2055365, 2529680, 2554240, 3288584, 4047488, 4110730, 5059360, 6577168, 8221460, 10118720, 13154336, 16442920, 20237440, 26308672, 32885840, 52617344, 65771680, 131543360, 263086720]

約数ペア:

[(1, 263086720), (2, 131543360), (4, 65771680), (5, 52617344), (8, 32885840), (10, 26308672), (13, 20237440), (16, 16442920), (20, 13154336), (26, 10118720), (32, 8221460), (40, 6577168), (52, 5059360), (64, 4110730), (65, 4047488), (80, 3288584), (103, 2554240), (104, 2529680), (128, 2055365), (130, 2023744), (160, 1644292), (206, 1277120), (208, 1264840), (260, 1011872), (307, 856960), (320, 822146), (412, 638560), (416, 632420), (515, 510848), (520, 505936), (614, 428480), (640, 411073), (824, 319280), (832, 316210), (1030, 255424), (1040, 252968), (1228, 214240), (1339, 196480), (1535, 171392), (1648, 159640), (1664, 158105), (2060, 127712), (2080, 126484), (2456, 107120), (2678, 98240), (3070, 85696), (3296, 79820), (3991, 65920), (4120, 63856), (4160, 63242), (4912, 53560), (5356, 49120), (6140, 42848), (6592, 39910), (6695, 39296), (7982, 32960), (8240, 31928), (8320, 31621), (9824, 26780), (10712, 24560), (12280, 21424), (13184, 19955), (13390, 19648), (15964, 16480)]