20610590

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:138

約数の個数: 128

約数和(自身を含む): 52254720

約数和(自身を除く): 31644130

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 29, 35, 55, 58, 65, 70, 71, 77, 91, 110, 130, 142, 143, 145, 154, 182, 203, 286, 290, 319, 355, 377, 385, 406, 455, 497, 638, 710, 715, 754, 770, 781, 910, 923, 994, 1001, 1015, 1430, 1562, 1595, 1846, 1885, 2002, 2030, 2059, 2233, 2485, 2639, 3190, 3770, 3905, 4118, 4147, 4466, 4615, 4970, 5005, 5278, 5467, 6461, 7810, 8294, 9230, 10010, 10153, 10295, 10934, 11165, 12922, 13195, 14413, 20306, 20590, 20735, 22330, 22649, 26390, 26767, 27335, 28826, 29029, 32305, 41470, 45298, 50765, 53534, 54670, 58058, 64610, 71071, 72065, 101530, 113245, 133835, 142142, 144130, 145145, 158543, 187369, 226490, 267670, 290290, 294437, 317086, 355355, 374738, 588874, 710710, 792715, 936845, 1472185, 1585430, 1873690, 2061059, 2944370, 4122118, 10305295, 20610590]

約数ペア:

[(1, 20610590), (2, 10305295), (5, 4122118), (7, 2944370), (10, 2061059), (11, 1873690), (13, 1585430), (14, 1472185), (22, 936845), (26, 792715), (29, 710710), (35, 588874), (55, 374738), (58, 355355), (65, 317086), (70, 294437), (71, 290290), (77, 267670), (91, 226490), (110, 187369), (130, 158543), (142, 145145), (143, 144130), (145, 142142), (154, 133835), (182, 113245), (203, 101530), (286, 72065), (290, 71071), (319, 64610), (355, 58058), (377, 54670), (385, 53534), (406, 50765), (455, 45298), (497, 41470), (638, 32305), (710, 29029), (715, 28826), (754, 27335), (770, 26767), (781, 26390), (910, 22649), (923, 22330), (994, 20735), (1001, 20590), (1015, 20306), (1430, 14413), (1562, 13195), (1595, 12922), (1846, 11165), (1885, 10934), (2002, 10295), (2030, 10153), (2059, 10010), (2233, 9230), (2485, 8294), (2639, 7810), (3190, 6461), (3770, 5467), (3905, 5278), (4118, 5005), (4147, 4970), (4466, 4615)]