256727040

素因数分解:

$2^{11}\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:228

約数の個数: 192

約数和(自身を含む): 840883680

約数和(自身を除く): 584156640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 61, 64, 80, 96, 120, 122, 128, 137, 160, 183, 192, 240, 244, 256, 274, 305, 320, 366, 384, 411, 480, 488, 512, 548, 610, 640, 685, 732, 768, 822, 915, 960, 976, 1024, 1096, 1220, 1280, 1370, 1464, 1536, 1644, 1830, 1920, 1952, 2048, 2055, 2192, 2440, 2560, 2740, 2928, 3072, 3288, 3660, 3840, 3904, 4110, 4384, 4880, 5120, 5480, 5856, 6144, 6576, 7320, 7680, 7808, 8220, 8357, 8768, 9760, 10240, 10960, 11712, 13152, 14640, 15360, 15616, 16440, 16714, 17536, 19520, 21920, 23424, 25071, 26304, 29280, 30720, 31232, 32880, 33428, 35072, 39040, 41785, 43840, 46848, 50142, 52608, 58560, 62464, 65760, 66856, 70144, 78080, 83570, 87680, 93696, 100284, 105216, 117120, 124928, 125355, 131520, 133712, 140288, 156160, 167140, 175360, 187392, 200568, 210432, 234240, 250710, 263040, 267424, 280576, 312320, 334280, 350720, 374784, 401136, 420864, 468480, 501420, 526080, 534848, 624640, 668560, 701440, 802272, 841728, 936960, 1002840, 1052160, 1069696, 1337120, 1402880, 1604544, 1873920, 2005680, 2104320, 2139392, 2674240, 3209088, 4011360, 4208640, 4278784, 5348480, 6418176, 8022720, 8557568, 10696960, 12836352, 16045440, 17115136, 21393920, 25672704, 32090880, 42787840, 51345408, 64181760, 85575680, 128363520, 256727040]

約数ペア:

[(1, 256727040), (2, 128363520), (3, 85575680), (4, 64181760), (5, 51345408), (6, 42787840), (8, 32090880), (10, 25672704), (12, 21393920), (15, 17115136), (16, 16045440), (20, 12836352), (24, 10696960), (30, 8557568), (32, 8022720), (40, 6418176), (48, 5348480), (60, 4278784), (61, 4208640), (64, 4011360), (80, 3209088), (96, 2674240), (120, 2139392), (122, 2104320), (128, 2005680), (137, 1873920), (160, 1604544), (183, 1402880), (192, 1337120), (240, 1069696), (244, 1052160), (256, 1002840), (274, 936960), (305, 841728), (320, 802272), (366, 701440), (384, 668560), (411, 624640), (480, 534848), (488, 526080), (512, 501420), (548, 468480), (610, 420864), (640, 401136), (685, 374784), (732, 350720), (768, 334280), (822, 312320), (915, 280576), (960, 267424), (976, 263040), (1024, 250710), (1096, 234240), (1220, 210432), (1280, 200568), (1370, 187392), (1464, 175360), (1536, 167140), (1644, 156160), (1830, 140288), (1920, 133712), (1952, 131520), (2048, 125355), (2055, 124928), (2192, 117120), (2440, 105216), (2560, 100284), (2740, 93696), (2928, 87680), (3072, 83570), (3288, 78080), (3660, 70144), (3840, 66856), (3904, 65760), (4110, 62464), (4384, 58560), (4880, 52608), (5120, 50142), (5480, 46848), (5856, 43840), (6144, 41785), (6576, 39040), (7320, 35072), (7680, 33428), (7808, 32880), (8220, 31232), (8357, 30720), (8768, 29280), (9760, 26304), (10240, 25071), (10960, 23424), (11712, 21920), (13152, 19520), (14640, 17536), (15360, 16714), (15616, 16440)]