81831120

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{727}}^1$

素因数の和:817

約数の個数: 160

約数和(自身を含む): 294647808

約数和(自身を除く): 212816688

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 67, 70, 80, 84, 105, 112, 120, 134, 140, 168, 201, 210, 240, 268, 280, 335, 336, 402, 420, 469, 536, 560, 670, 727, 804, 840, 938, 1005, 1072, 1340, 1407, 1454, 1608, 1680, 1876, 2010, 2181, 2345, 2680, 2814, 2908, 3216, 3635, 3752, 4020, 4362, 4690, 5089, 5360, 5628, 5816, 7035, 7270, 7504, 8040, 8724, 9380, 10178, 10905, 11256, 11632, 14070, 14540, 15267, 16080, 17448, 18760, 20356, 21810, 22512, 25445, 28140, 29080, 30534, 34896, 37520, 40712, 43620, 48709, 50890, 56280, 58160, 61068, 76335, 81424, 87240, 97418, 101780, 112560, 122136, 146127, 152670, 174480, 194836, 203560, 243545, 244272, 292254, 305340, 340963, 389672, 407120, 487090, 584508, 610680, 681926, 730635, 779344, 974180, 1022889, 1169016, 1221360, 1363852, 1461270, 1704815, 1948360, 2045778, 2338032, 2727704, 2922540, 3409630, 3896720, 4091556, 5114445, 5455408, 5845080, 6819260, 8183112, 10228890, 11690160, 13638520, 16366224, 20457780, 27277040, 40915560, 81831120]

約数ペア:

[(1, 81831120), (2, 40915560), (3, 27277040), (4, 20457780), (5, 16366224), (6, 13638520), (7, 11690160), (8, 10228890), (10, 8183112), (12, 6819260), (14, 5845080), (15, 5455408), (16, 5114445), (20, 4091556), (21, 3896720), (24, 3409630), (28, 2922540), (30, 2727704), (35, 2338032), (40, 2045778), (42, 1948360), (48, 1704815), (56, 1461270), (60, 1363852), (67, 1221360), (70, 1169016), (80, 1022889), (84, 974180), (105, 779344), (112, 730635), (120, 681926), (134, 610680), (140, 584508), (168, 487090), (201, 407120), (210, 389672), (240, 340963), (268, 305340), (280, 292254), (335, 244272), (336, 243545), (402, 203560), (420, 194836), (469, 174480), (536, 152670), (560, 146127), (670, 122136), (727, 112560), (804, 101780), (840, 97418), (938, 87240), (1005, 81424), (1072, 76335), (1340, 61068), (1407, 58160), (1454, 56280), (1608, 50890), (1680, 48709), (1876, 43620), (2010, 40712), (2181, 37520), (2345, 34896), (2680, 30534), (2814, 29080), (2908, 28140), (3216, 25445), (3635, 22512), (3752, 21810), (4020, 20356), (4362, 18760), (4690, 17448), (5089, 16080), (5360, 15267), (5628, 14540), (5816, 14070), (7035, 11632), (7270, 11256), (7504, 10905), (8040, 10178), (8724, 9380)]