20281569280

素因数分解:

$2^{12}\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6151}}^1$

素因数の和:6210

約数の個数: 208

約数和(自身を含む): 58050468864

約数和(自身を除く): 37768899584

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 64, 70, 80, 92, 112, 115, 128, 140, 160, 161, 184, 224, 230, 256, 280, 320, 322, 368, 448, 460, 512, 560, 640, 644, 736, 805, 896, 920, 1024, 1120, 1280, 1288, 1472, 1610, 1792, 1840, 2048, 2240, 2560, 2576, 2944, 3220, 3584, 3680, 4096, 4480, 5120, 5152, 5888, 6151, 6440, 7168, 7360, 8960, 10240, 10304, 11776, 12302, 12880, 14336, 14720, 17920, 20480, 20608, 23552, 24604, 25760, 28672, 29440, 30755, 35840, 41216, 43057, 47104, 49208, 51520, 58880, 61510, 71680, 82432, 86114, 94208, 98416, 103040, 117760, 123020, 141473, 143360, 164864, 172228, 196832, 206080, 215285, 235520, 246040, 282946, 329728, 344456, 393664, 412160, 430570, 471040, 492080, 565892, 659456, 688912, 707365, 787328, 824320, 861140, 984160, 990311, 1131784, 1377824, 1414730, 1574656, 1648640, 1722280, 1968320, 1980622, 2263568, 2755648, 2829460, 3149312, 3297280, 3444560, 3936640, 3961244, 4527136, 4951555, 5511296, 5658920, 6298624, 6889120, 7873280, 7922488, 9054272, 9903110, 11022592, 11317840, 12597248, 13778240, 15746560, 15844976, 18108544, 19806220, 22045184, 22635680, 25194496, 27556480, 31493120, 31689952, 36217088, 39612440, 44090368, 45271360, 55112960, 62986240, 63379904, 72434176, 79224880, 88180736, 90542720, 110225920, 125972480, 126759808, 144868352, 158449760, 176361472, 181085440, 220451840, 253519616, 289736704, 316899520, 362170880, 440903680, 507039232, 579473408, 633799040, 724341760, 881807360, 1014078464, 1267598080, 1448683520, 2028156928, 2535196160, 2897367040, 4056313856, 5070392320, 10140784640, 20281569280]

約数ペア:

[(1, 20281569280), (2, 10140784640), (4, 5070392320), (5, 4056313856), (7, 2897367040), (8, 2535196160), (10, 2028156928), (14, 1448683520), (16, 1267598080), (20, 1014078464), (23, 881807360), (28, 724341760), (32, 633799040), (35, 579473408), (40, 507039232), (46, 440903680), (56, 362170880), (64, 316899520), (70, 289736704), (80, 253519616), (92, 220451840), (112, 181085440), (115, 176361472), (128, 158449760), (140, 144868352), (160, 126759808), (161, 125972480), (184, 110225920), (224, 90542720), (230, 88180736), (256, 79224880), (280, 72434176), (320, 63379904), (322, 62986240), (368, 55112960), (448, 45271360), (460, 44090368), (512, 39612440), (560, 36217088), (640, 31689952), (644, 31493120), (736, 27556480), (805, 25194496), (896, 22635680), (920, 22045184), (1024, 19806220), (1120, 18108544), (1280, 15844976), (1288, 15746560), (1472, 13778240), (1610, 12597248), (1792, 11317840), (1840, 11022592), (2048, 9903110), (2240, 9054272), (2560, 7922488), (2576, 7873280), (2944, 6889120), (3220, 6298624), (3584, 5658920), (3680, 5511296), (4096, 4951555), (4480, 4527136), (5120, 3961244), (5152, 3936640), (5888, 3444560), (6151, 3297280), (6440, 3149312), (7168, 2829460), (7360, 2755648), (8960, 2263568), (10240, 1980622), (10304, 1968320), (11776, 1722280), (12302, 1648640), (12880, 1574656), (14336, 1414730), (14720, 1377824), (17920, 1131784), (20480, 990311), (20608, 984160), (23552, 861140), (24604, 824320), (25760, 787328), (28672, 707365), (29440, 688912), (30755, 659456), (35840, 565892), (41216, 492080), (43057, 471040), (47104, 430570), (49208, 412160), (51520, 393664), (58880, 344456), (61510, 329728), (71680, 282946), (82432, 246040), (86114, 235520), (94208, 215285), (98416, 206080), (103040, 196832), (117760, 172228), (123020, 164864), (141473, 143360)]