20286187520

素因数分解:

$2^{11}\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{821}}^1$

素因数の和:994

約数の個数: 192

約数和(自身を含む): 51703142400

約数和(自身を除く): 31416954880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 127, 128, 152, 160, 190, 254, 256, 304, 320, 380, 508, 512, 608, 635, 640, 760, 821, 1016, 1024, 1216, 1270, 1280, 1520, 1642, 2032, 2048, 2413, 2432, 2540, 2560, 3040, 3284, 4064, 4105, 4826, 4864, 5080, 5120, 6080, 6568, 8128, 8210, 9652, 9728, 10160, 10240, 12065, 12160, 13136, 15599, 16256, 16420, 19304, 19456, 20320, 24130, 24320, 26272, 31198, 32512, 32840, 38608, 38912, 40640, 48260, 48640, 52544, 62396, 65024, 65680, 77216, 77995, 81280, 96520, 97280, 104267, 105088, 124792, 130048, 131360, 154432, 155990, 162560, 193040, 194560, 208534, 210176, 249584, 260096, 262720, 308864, 311980, 325120, 386080, 417068, 420352, 499168, 521335, 525440, 617728, 623960, 650240, 772160, 834136, 840704, 998336, 1042670, 1050880, 1235456, 1247920, 1300480, 1544320, 1668272, 1681408, 1981073, 1996672, 2085340, 2101760, 2470912, 2495840, 3088640, 3336544, 3962146, 3993344, 4170680, 4203520, 4941824, 4991680, 6177280, 6673088, 7924292, 7986688, 8341360, 8407040, 9905365, 9983360, 12354560, 13346176, 15848584, 15973376, 16682720, 19810730, 19966720, 24709120, 26692352, 31697168, 31946752, 33365440, 39621460, 39933440, 53384704, 63394336, 66730880, 79242920, 79866880, 106769408, 126788672, 133461760, 158485840, 159733760, 213538816, 253577344, 266923520, 316971680, 507154688, 533847040, 633943360, 1014309376, 1067694080, 1267886720, 2028618752, 2535773440, 4057237504, 5071546880, 10143093760, 20286187520]

約数ペア:

[(1, 20286187520), (2, 10143093760), (4, 5071546880), (5, 4057237504), (8, 2535773440), (10, 2028618752), (16, 1267886720), (19, 1067694080), (20, 1014309376), (32, 633943360), (38, 533847040), (40, 507154688), (64, 316971680), (76, 266923520), (80, 253577344), (95, 213538816), (127, 159733760), (128, 158485840), (152, 133461760), (160, 126788672), (190, 106769408), (254, 79866880), (256, 79242920), (304, 66730880), (320, 63394336), (380, 53384704), (508, 39933440), (512, 39621460), (608, 33365440), (635, 31946752), (640, 31697168), (760, 26692352), (821, 24709120), (1016, 19966720), (1024, 19810730), (1216, 16682720), (1270, 15973376), (1280, 15848584), (1520, 13346176), (1642, 12354560), (2032, 9983360), (2048, 9905365), (2413, 8407040), (2432, 8341360), (2540, 7986688), (2560, 7924292), (3040, 6673088), (3284, 6177280), (4064, 4991680), (4105, 4941824), (4826, 4203520), (4864, 4170680), (5080, 3993344), (5120, 3962146), (6080, 3336544), (6568, 3088640), (8128, 2495840), (8210, 2470912), (9652, 2101760), (9728, 2085340), (10160, 1996672), (10240, 1981073), (12065, 1681408), (12160, 1668272), (13136, 1544320), (15599, 1300480), (16256, 1247920), (16420, 1235456), (19304, 1050880), (19456, 1042670), (20320, 998336), (24130, 840704), (24320, 834136), (26272, 772160), (31198, 650240), (32512, 623960), (32840, 617728), (38608, 525440), (38912, 521335), (40640, 499168), (48260, 420352), (48640, 417068), (52544, 386080), (62396, 325120), (65024, 311980), (65680, 308864), (77216, 262720), (77995, 260096), (81280, 249584), (96520, 210176), (97280, 208534), (104267, 194560), (105088, 193040), (124792, 162560), (130048, 155990), (131360, 154432)]