20056977920

素因数分解:

$2^9\times 5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{1259}}^1$

素因数の和:1423

約数の個数: 240

約数和(自身を含む): 56426388480

約数和(自身を除く): 36369410560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 127, 128, 140, 160, 196, 224, 245, 254, 256, 280, 320, 392, 448, 490, 508, 512, 560, 635, 640, 784, 889, 896, 980, 1016, 1120, 1259, 1270, 1280, 1568, 1778, 1792, 1960, 2032, 2240, 2518, 2540, 2560, 3136, 3556, 3584, 3920, 4064, 4445, 4480, 5036, 5080, 6223, 6272, 6295, 7112, 7840, 8128, 8813, 8890, 8960, 10072, 10160, 12446, 12544, 12590, 14224, 15680, 16256, 17626, 17780, 17920, 20144, 20320, 24892, 25088, 25180, 28448, 31115, 31360, 32512, 35252, 35560, 40288, 40640, 44065, 49784, 50360, 56896, 61691, 62230, 62720, 65024, 70504, 71120, 80576, 81280, 88130, 99568, 100720, 113792, 123382, 124460, 125440, 141008, 142240, 159893, 161152, 162560, 176260, 199136, 201440, 227584, 246764, 248920, 282016, 284480, 308455, 319786, 322304, 325120, 352520, 398272, 402880, 455168, 493528, 497840, 564032, 568960, 616910, 639572, 644608, 705040, 796544, 799465, 805760, 987056, 995680, 1119251, 1128064, 1137920, 1233820, 1279144, 1410080, 1593088, 1598930, 1611520, 1974112, 1991360, 2238502, 2256128, 2275840, 2467640, 2558288, 2820160, 3186176, 3197860, 3223040, 3948224, 3982720, 4477004, 4512256, 4935280, 5116576, 5596255, 5640320, 6395720, 7834757, 7896448, 7965440, 8954008, 9870560, 10233152, 11192510, 11280640, 12791440, 15669514, 15792896, 15930880, 17908016, 19741120, 20466304, 22385020, 22561280, 25582880, 31339028, 31585792, 35816032, 39173785, 39482240, 40932608, 44770040, 51165760, 62678056, 71632064, 78347570, 78964480, 81865216, 89540080, 102331520, 125356112, 143264128, 156695140, 157928960, 179080160, 204663040, 250712224, 286528256, 313390280, 358160320, 409326080, 501424448, 573056512, 626780560, 716320640, 1002848896, 1253561120, 1432641280, 2005697792, 2507122240, 2865282560, 4011395584, 5014244480, 10028488960, 20056977920]

約数ペア:

[(1, 20056977920), (2, 10028488960), (4, 5014244480), (5, 4011395584), (7, 2865282560), (8, 2507122240), (10, 2005697792), (14, 1432641280), (16, 1253561120), (20, 1002848896), (28, 716320640), (32, 626780560), (35, 573056512), (40, 501424448), (49, 409326080), (56, 358160320), (64, 313390280), (70, 286528256), (80, 250712224), (98, 204663040), (112, 179080160), (127, 157928960), (128, 156695140), (140, 143264128), (160, 125356112), (196, 102331520), (224, 89540080), (245, 81865216), (254, 78964480), (256, 78347570), (280, 71632064), (320, 62678056), (392, 51165760), (448, 44770040), (490, 40932608), (508, 39482240), (512, 39173785), (560, 35816032), (635, 31585792), (640, 31339028), (784, 25582880), (889, 22561280), (896, 22385020), (980, 20466304), (1016, 19741120), (1120, 17908016), (1259, 15930880), (1270, 15792896), (1280, 15669514), (1568, 12791440), (1778, 11280640), (1792, 11192510), (1960, 10233152), (2032, 9870560), (2240, 8954008), (2518, 7965440), (2540, 7896448), (2560, 7834757), (3136, 6395720), (3556, 5640320), (3584, 5596255), (3920, 5116576), (4064, 4935280), (4445, 4512256), (4480, 4477004), (5036, 3982720), (5080, 3948224), (6223, 3223040), (6272, 3197860), (6295, 3186176), (7112, 2820160), (7840, 2558288), (8128, 2467640), (8813, 2275840), (8890, 2256128), (8960, 2238502), (10072, 1991360), (10160, 1974112), (12446, 1611520), (12544, 1598930), (12590, 1593088), (14224, 1410080), (15680, 1279144), (16256, 1233820), (17626, 1137920), (17780, 1128064), (17920, 1119251), (20144, 995680), (20320, 987056), (24892, 805760), (25088, 799465), (25180, 796544), (28448, 705040), (31115, 644608), (31360, 639572), (32512, 616910), (35252, 568960), (35560, 564032), (40288, 497840), (40640, 493528), (44065, 455168), (49784, 402880), (50360, 398272), (56896, 352520), (61691, 325120), (62230, 322304), (62720, 319786), (65024, 308455), (70504, 284480), (71120, 282016), (80576, 248920), (81280, 246764), (88130, 227584), (99568, 201440), (100720, 199136), (113792, 176260), (123382, 162560), (124460, 161152), (125440, 159893), (141008, 142240)]