256217280

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1277}}^1$

素因数の和:1327

約数の個数: 224

約数和(自身を含む): 934882560

約数和(自身を除く): 678665280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 19, 20, 22, 24, 30, 32, 33, 38, 40, 44, 48, 55, 57, 60, 64, 66, 76, 80, 88, 95, 96, 110, 114, 120, 132, 152, 160, 165, 176, 190, 192, 209, 220, 228, 240, 264, 285, 304, 320, 330, 352, 380, 418, 440, 456, 480, 528, 570, 608, 627, 660, 704, 760, 836, 880, 912, 960, 1045, 1056, 1140, 1216, 1254, 1277, 1320, 1520, 1672, 1760, 1824, 2090, 2112, 2280, 2508, 2554, 2640, 3040, 3135, 3344, 3520, 3648, 3831, 4180, 4560, 5016, 5108, 5280, 6080, 6270, 6385, 6688, 7662, 8360, 9120, 10032, 10216, 10560, 12540, 12770, 13376, 14047, 15324, 16720, 18240, 19155, 20064, 20432, 24263, 25080, 25540, 28094, 30648, 33440, 38310, 40128, 40864, 42141, 48526, 50160, 51080, 56188, 61296, 66880, 70235, 72789, 76620, 81728, 84282, 97052, 100320, 102160, 112376, 121315, 122592, 140470, 145578, 153240, 168564, 194104, 200640, 204320, 210705, 224752, 242630, 245184, 266893, 280940, 291156, 306480, 337128, 363945, 388208, 408640, 421410, 449504, 485260, 533786, 561880, 582312, 612960, 674256, 727890, 776416, 800679, 842820, 899008, 970520, 1067572, 1123760, 1164624, 1225920, 1334465, 1348512, 1455780, 1552832, 1601358, 1685640, 1941040, 2135144, 2247520, 2329248, 2668930, 2697024, 2911560, 3202716, 3371280, 3882080, 4003395, 4270288, 4495040, 4658496, 5337860, 5823120, 6405432, 6742560, 7764160, 8006790, 8540576, 10675720, 11646240, 12810864, 13485120, 16013580, 17081152, 21351440, 23292480, 25621728, 32027160, 42702880, 51243456, 64054320, 85405760, 128108640, 256217280]

約数ペア:

[(1, 256217280), (2, 128108640), (3, 85405760), (4, 64054320), (5, 51243456), (6, 42702880), (8, 32027160), (10, 25621728), (11, 23292480), (12, 21351440), (15, 17081152), (16, 16013580), (19, 13485120), (20, 12810864), (22, 11646240), (24, 10675720), (30, 8540576), (32, 8006790), (33, 7764160), (38, 6742560), (40, 6405432), (44, 5823120), (48, 5337860), (55, 4658496), (57, 4495040), (60, 4270288), (64, 4003395), (66, 3882080), (76, 3371280), (80, 3202716), (88, 2911560), (95, 2697024), (96, 2668930), (110, 2329248), (114, 2247520), (120, 2135144), (132, 1941040), (152, 1685640), (160, 1601358), (165, 1552832), (176, 1455780), (190, 1348512), (192, 1334465), (209, 1225920), (220, 1164624), (228, 1123760), (240, 1067572), (264, 970520), (285, 899008), (304, 842820), (320, 800679), (330, 776416), (352, 727890), (380, 674256), (418, 612960), (440, 582312), (456, 561880), (480, 533786), (528, 485260), (570, 449504), (608, 421410), (627, 408640), (660, 388208), (704, 363945), (760, 337128), (836, 306480), (880, 291156), (912, 280940), (960, 266893), (1045, 245184), (1056, 242630), (1140, 224752), (1216, 210705), (1254, 204320), (1277, 200640), (1320, 194104), (1520, 168564), (1672, 153240), (1760, 145578), (1824, 140470), (2090, 122592), (2112, 121315), (2280, 112376), (2508, 102160), (2554, 100320), (2640, 97052), (3040, 84282), (3135, 81728), (3344, 76620), (3520, 72789), (3648, 70235), (3831, 66880), (4180, 61296), (4560, 56188), (5016, 51080), (5108, 50160), (5280, 48526), (6080, 42141), (6270, 40864), (6385, 40128), (6688, 38310), (7662, 33440), (8360, 30648), (9120, 28094), (10032, 25540), (10216, 25080), (10560, 24263), (12540, 20432), (12770, 20064), (13376, 19155), (14047, 18240), (15324, 16720)]