20381680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1$

素因数の和:119

約数の個数: 160

約数和(自身を含む): 57853440

約数和(自身を除く): 37471760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 23, 38, 40, 44, 46, 53, 55, 76, 80, 88, 92, 95, 106, 110, 115, 152, 176, 184, 190, 209, 212, 220, 230, 253, 265, 304, 368, 380, 418, 424, 437, 440, 460, 506, 530, 583, 760, 836, 848, 874, 880, 920, 1007, 1012, 1045, 1060, 1166, 1219, 1265, 1520, 1672, 1748, 1840, 2014, 2024, 2090, 2120, 2185, 2332, 2438, 2530, 2915, 3344, 3496, 4028, 4048, 4180, 4240, 4370, 4664, 4807, 4876, 5035, 5060, 5830, 6095, 6992, 8056, 8360, 8740, 9328, 9614, 9752, 10070, 10120, 11077, 11660, 12190, 13409, 16112, 16720, 17480, 19228, 19504, 20140, 20240, 22154, 23161, 23320, 24035, 24380, 26818, 34960, 38456, 40280, 44308, 46322, 46640, 48070, 48760, 53636, 55385, 67045, 76912, 80560, 88616, 92644, 96140, 97520, 107272, 110770, 115805, 134090, 177232, 185288, 192280, 214544, 221540, 231610, 254771, 268180, 370576, 384560, 443080, 463220, 509542, 536360, 886160, 926440, 1019084, 1072720, 1273855, 1852880, 2038168, 2547710, 4076336, 5095420, 10190840, 20381680]

約数ペア:

[(1, 20381680), (2, 10190840), (4, 5095420), (5, 4076336), (8, 2547710), (10, 2038168), (11, 1852880), (16, 1273855), (19, 1072720), (20, 1019084), (22, 926440), (23, 886160), (38, 536360), (40, 509542), (44, 463220), (46, 443080), (53, 384560), (55, 370576), (76, 268180), (80, 254771), (88, 231610), (92, 221540), (95, 214544), (106, 192280), (110, 185288), (115, 177232), (152, 134090), (176, 115805), (184, 110770), (190, 107272), (209, 97520), (212, 96140), (220, 92644), (230, 88616), (253, 80560), (265, 76912), (304, 67045), (368, 55385), (380, 53636), (418, 48760), (424, 48070), (437, 46640), (440, 46322), (460, 44308), (506, 40280), (530, 38456), (583, 34960), (760, 26818), (836, 24380), (848, 24035), (874, 23320), (880, 23161), (920, 22154), (1007, 20240), (1012, 20140), (1045, 19504), (1060, 19228), (1166, 17480), (1219, 16720), (1265, 16112), (1520, 13409), (1672, 12190), (1748, 11660), (1840, 11077), (2014, 10120), (2024, 10070), (2090, 9752), (2120, 9614), (2185, 9328), (2332, 8740), (2438, 8360), (2530, 8056), (2915, 6992), (3344, 6095), (3496, 5830), (4028, 5060), (4048, 5035), (4180, 4876), (4240, 4807), (4370, 4664)]