20041721280

素因数分解:

$2^6\times 3^2\times 5^1\times 7^2\times {\mathrm{142019}}^1$

素因数の和:142056

約数の個数: 252

約数和(自身を含む): 80190456840

約数和(自身を除く): 60148735560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 98, 105, 112, 120, 126, 140, 144, 147, 160, 168, 180, 192, 196, 210, 224, 240, 245, 252, 280, 288, 294, 315, 320, 336, 360, 392, 420, 441, 448, 480, 490, 504, 560, 576, 588, 630, 672, 720, 735, 784, 840, 882, 960, 980, 1008, 1120, 1176, 1260, 1344, 1440, 1470, 1568, 1680, 1764, 1960, 2016, 2205, 2240, 2352, 2520, 2880, 2940, 3136, 3360, 3528, 3920, 4032, 4410, 4704, 5040, 5880, 6720, 7056, 7840, 8820, 9408, 10080, 11760, 14112, 15680, 17640, 20160, 23520, 28224, 35280, 47040, 70560, 141120, 142019, 284038, 426057, 568076, 710095, 852114, 994133, 1136152, 1278171, 1420190, 1704228, 1988266, 2130285, 2272304, 2556342, 2840380, 2982399, 3408456, 3976532, 4260570, 4544608, 4970665, 5112684, 5680760, 5964798, 6390855, 6816912, 6958931, 7953064, 8521140, 8947197, 9089216, 9941330, 10225368, 11361520, 11929596, 12781710, 13633824, 13917862, 14911995, 15906128, 17042280, 17894394, 19882660, 20450736, 20876793, 22723040, 23859192, 25563420, 27267648, 27835724, 29823990, 31812256, 34084560, 34794655, 35788788, 39765320, 40901472, 41753586, 44735985, 45446080, 47718384, 51126840, 55671448, 59647980, 62630379, 63624512, 68169120, 69589310, 71577576, 79530640, 81802944, 83507172, 89471970, 95436768, 102253680, 104383965, 111342896, 119295960, 125260758, 136338240, 139178620, 143155152, 159061280, 167014344, 178943940, 190873536, 204507360, 208767930, 222685792, 238591920, 250521516, 278357240, 286310304, 313151895, 318122560, 334028688, 357887880, 409014720, 417535860, 445371584, 477183840, 501043032, 556714480, 572620608, 626303790, 668057376, 715775760, 835071720, 954367680, 1002086064, 1113428960, 1252607580, 1336114752, 1431551520, 1670143440, 2004172128, 2226857920, 2505215160, 2863103040, 3340286880, 4008344256, 5010430320, 6680573760, 10020860640, 20041721280]

約数ペア:

[(1, 20041721280), (2, 10020860640), (3, 6680573760), (4, 5010430320), (5, 4008344256), (6, 3340286880), (7, 2863103040), (8, 2505215160), (9, 2226857920), (10, 2004172128), (12, 1670143440), (14, 1431551520), (15, 1336114752), (16, 1252607580), (18, 1113428960), (20, 1002086064), (21, 954367680), (24, 835071720), (28, 715775760), (30, 668057376), (32, 626303790), (35, 572620608), (36, 556714480), (40, 501043032), (42, 477183840), (45, 445371584), (48, 417535860), (49, 409014720), (56, 357887880), (60, 334028688), (63, 318122560), (64, 313151895), (70, 286310304), (72, 278357240), (80, 250521516), (84, 238591920), (90, 222685792), (96, 208767930), (98, 204507360), (105, 190873536), (112, 178943940), (120, 167014344), (126, 159061280), (140, 143155152), (144, 139178620), (147, 136338240), (160, 125260758), (168, 119295960), (180, 111342896), (192, 104383965), (196, 102253680), (210, 95436768), (224, 89471970), (240, 83507172), (245, 81802944), (252, 79530640), (280, 71577576), (288, 69589310), (294, 68169120), (315, 63624512), (320, 62630379), (336, 59647980), (360, 55671448), (392, 51126840), (420, 47718384), (441, 45446080), (448, 44735985), (480, 41753586), (490, 40901472), (504, 39765320), (560, 35788788), (576, 34794655), (588, 34084560), (630, 31812256), (672, 29823990), (720, 27835724), (735, 27267648), (784, 25563420), (840, 23859192), (882, 22723040), (960, 20876793), (980, 20450736), (1008, 19882660), (1120, 17894394), (1176, 17042280), (1260, 15906128), (1344, 14911995), (1440, 13917862), (1470, 13633824), (1568, 12781710), (1680, 11929596), (1764, 11361520), (1960, 10225368), (2016, 9941330), (2205, 9089216), (2240, 8947197), (2352, 8521140), (2520, 7953064), (2880, 6958931), (2940, 6816912), (3136, 6390855), (3360, 5964798), (3528, 5680760), (3920, 5112684), (4032, 4970665), (4410, 4544608), (4704, 4260570), (5040, 3976532), (5880, 3408456), (6720, 2982399), (7056, 2840380), (7840, 2556342), (8820, 2272304), (9408, 2130285), (10080, 1988266), (11760, 1704228), (14112, 1420190), (15680, 1278171), (17640, 1136152), (20160, 994133), (23520, 852114), (28224, 710095), (35280, 568076), (47040, 426057), (70560, 284038), (141120, 142019)]