400968960

素因数分解:

$2^8\times 3^1\times 5^1\times 7^2\times {\mathrm{2131}}^1$

素因数の和:2169

約数の個数: 216

約数和(自身を含む): 1490370336

約数和(自身を除く): 1089401376

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 64, 70, 80, 84, 96, 98, 105, 112, 120, 128, 140, 147, 160, 168, 192, 196, 210, 224, 240, 245, 256, 280, 294, 320, 336, 384, 392, 420, 448, 480, 490, 560, 588, 640, 672, 735, 768, 784, 840, 896, 960, 980, 1120, 1176, 1280, 1344, 1470, 1568, 1680, 1792, 1920, 1960, 2131, 2240, 2352, 2688, 2940, 3136, 3360, 3840, 3920, 4262, 4480, 4704, 5376, 5880, 6272, 6393, 6720, 7840, 8524, 8960, 9408, 10655, 11760, 12544, 12786, 13440, 14917, 15680, 17048, 18816, 21310, 23520, 25572, 26880, 29834, 31360, 31965, 34096, 37632, 42620, 44751, 47040, 51144, 59668, 62720, 63930, 68192, 74585, 85240, 89502, 94080, 102288, 104419, 119336, 127860, 136384, 149170, 170480, 179004, 188160, 204576, 208838, 223755, 238672, 255720, 272768, 298340, 313257, 340960, 358008, 409152, 417676, 447510, 477344, 511440, 522095, 545536, 596680, 626514, 681920, 716016, 818304, 835352, 895020, 954688, 1022880, 1044190, 1193360, 1253028, 1363840, 1432032, 1566285, 1636608, 1670704, 1790040, 1909376, 2045760, 2088380, 2386720, 2506056, 2727680, 2864064, 3132570, 3341408, 3580080, 3818752, 4091520, 4176760, 4773440, 5012112, 5728128, 6265140, 6682816, 7160160, 8183040, 8353520, 9546880, 10024224, 11456256, 12530280, 13365632, 14320320, 16707040, 19093760, 20048448, 25060560, 26731264, 28640640, 33414080, 40096896, 50121120, 57281280, 66828160, 80193792, 100242240, 133656320, 200484480, 400968960]

約数ペア:

[(1, 400968960), (2, 200484480), (3, 133656320), (4, 100242240), (5, 80193792), (6, 66828160), (7, 57281280), (8, 50121120), (10, 40096896), (12, 33414080), (14, 28640640), (15, 26731264), (16, 25060560), (20, 20048448), (21, 19093760), (24, 16707040), (28, 14320320), (30, 13365632), (32, 12530280), (35, 11456256), (40, 10024224), (42, 9546880), (48, 8353520), (49, 8183040), (56, 7160160), (60, 6682816), (64, 6265140), (70, 5728128), (80, 5012112), (84, 4773440), (96, 4176760), (98, 4091520), (105, 3818752), (112, 3580080), (120, 3341408), (128, 3132570), (140, 2864064), (147, 2727680), (160, 2506056), (168, 2386720), (192, 2088380), (196, 2045760), (210, 1909376), (224, 1790040), (240, 1670704), (245, 1636608), (256, 1566285), (280, 1432032), (294, 1363840), (320, 1253028), (336, 1193360), (384, 1044190), (392, 1022880), (420, 954688), (448, 895020), (480, 835352), (490, 818304), (560, 716016), (588, 681920), (640, 626514), (672, 596680), (735, 545536), (768, 522095), (784, 511440), (840, 477344), (896, 447510), (960, 417676), (980, 409152), (1120, 358008), (1176, 340960), (1280, 313257), (1344, 298340), (1470, 272768), (1568, 255720), (1680, 238672), (1792, 223755), (1920, 208838), (1960, 204576), (2131, 188160), (2240, 179004), (2352, 170480), (2688, 149170), (2940, 136384), (3136, 127860), (3360, 119336), (3840, 104419), (3920, 102288), (4262, 94080), (4480, 89502), (4704, 85240), (5376, 74585), (5880, 68192), (6272, 63930), (6393, 62720), (6720, 59668), (7840, 51144), (8524, 47040), (8960, 44751), (9408, 42620), (10655, 37632), (11760, 34096), (12544, 31965), (12786, 31360), (13440, 29834), (14917, 26880), (15680, 25572), (17048, 23520), (18816, 21310)]