400481280

素因数分解:

$2^{10}\times 3^3\times 5^1\times {\mathrm{2897}}^1$

素因数の和:2931

約数の個数: 176

約数和(自身を含む): 1423729440

約数和(自身を除く): 1023248160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 256, 270, 288, 320, 360, 384, 432, 480, 512, 540, 576, 640, 720, 768, 864, 960, 1024, 1080, 1152, 1280, 1440, 1536, 1728, 1920, 2160, 2304, 2560, 2880, 2897, 3072, 3456, 3840, 4320, 4608, 5120, 5760, 5794, 6912, 7680, 8640, 8691, 9216, 11520, 11588, 13824, 14485, 15360, 17280, 17382, 23040, 23176, 26073, 27648, 28970, 34560, 34764, 43455, 46080, 46352, 52146, 57940, 69120, 69528, 78219, 86910, 92704, 104292, 115880, 130365, 138240, 139056, 156438, 173820, 185408, 208584, 231760, 260730, 278112, 312876, 347640, 370816, 391095, 417168, 463520, 521460, 556224, 625752, 695280, 741632, 782190, 834336, 927040, 1042920, 1112448, 1251504, 1390560, 1483264, 1564380, 1668672, 1854080, 2085840, 2224896, 2503008, 2781120, 2966528, 3128760, 3337344, 3708160, 4171680, 4449792, 5006016, 5562240, 6257520, 6674688, 7416320, 8343360, 8899584, 10012032, 11124480, 12515040, 13349376, 14832640, 16686720, 20024064, 22248960, 25030080, 26698752, 33373440, 40048128, 44497920, 50060160, 66746880, 80096256, 100120320, 133493760, 200240640, 400481280]

約数ペア:

[(1, 400481280), (2, 200240640), (3, 133493760), (4, 100120320), (5, 80096256), (6, 66746880), (8, 50060160), (9, 44497920), (10, 40048128), (12, 33373440), (15, 26698752), (16, 25030080), (18, 22248960), (20, 20024064), (24, 16686720), (27, 14832640), (30, 13349376), (32, 12515040), (36, 11124480), (40, 10012032), (45, 8899584), (48, 8343360), (54, 7416320), (60, 6674688), (64, 6257520), (72, 5562240), (80, 5006016), (90, 4449792), (96, 4171680), (108, 3708160), (120, 3337344), (128, 3128760), (135, 2966528), (144, 2781120), (160, 2503008), (180, 2224896), (192, 2085840), (216, 1854080), (240, 1668672), (256, 1564380), (270, 1483264), (288, 1390560), (320, 1251504), (360, 1112448), (384, 1042920), (432, 927040), (480, 834336), (512, 782190), (540, 741632), (576, 695280), (640, 625752), (720, 556224), (768, 521460), (864, 463520), (960, 417168), (1024, 391095), (1080, 370816), (1152, 347640), (1280, 312876), (1440, 278112), (1536, 260730), (1728, 231760), (1920, 208584), (2160, 185408), (2304, 173820), (2560, 156438), (2880, 139056), (2897, 138240), (3072, 130365), (3456, 115880), (3840, 104292), (4320, 92704), (4608, 86910), (5120, 78219), (5760, 69528), (5794, 69120), (6912, 57940), (7680, 52146), (8640, 46352), (8691, 46080), (9216, 43455), (11520, 34764), (11588, 34560), (13824, 28970), (14485, 27648), (15360, 26073), (17280, 23176), (17382, 23040)]