20880972

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:148

約数の個数: 144

約数和(自身を含む): 64576512

約数和(自身を除く): 43695540

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 41, 42, 43, 47, 63, 82, 84, 86, 94, 123, 126, 129, 141, 164, 172, 188, 246, 252, 258, 282, 287, 301, 329, 369, 387, 423, 492, 516, 564, 574, 602, 658, 738, 774, 846, 861, 903, 987, 1148, 1204, 1316, 1476, 1548, 1692, 1722, 1763, 1806, 1927, 1974, 2021, 2583, 2709, 2961, 3444, 3526, 3612, 3854, 3948, 4042, 5166, 5289, 5418, 5781, 5922, 6063, 7052, 7708, 8084, 10332, 10578, 10836, 11562, 11844, 12126, 12341, 13489, 14147, 15867, 17343, 18189, 21156, 23124, 24252, 24682, 26978, 28294, 31734, 34686, 36378, 37023, 40467, 42441, 49364, 53956, 56588, 63468, 69372, 72756, 74046, 80934, 82861, 84882, 111069, 121401, 127323, 148092, 161868, 165722, 169764, 222138, 242802, 248583, 254646, 331444, 444276, 485604, 497166, 509292, 580027, 745749, 994332, 1160054, 1491498, 1740081, 2320108, 2982996, 3480162, 5220243, 6960324, 10440486, 20880972]

約数ペア:

[(1, 20880972), (2, 10440486), (3, 6960324), (4, 5220243), (6, 3480162), (7, 2982996), (9, 2320108), (12, 1740081), (14, 1491498), (18, 1160054), (21, 994332), (28, 745749), (36, 580027), (41, 509292), (42, 497166), (43, 485604), (47, 444276), (63, 331444), (82, 254646), (84, 248583), (86, 242802), (94, 222138), (123, 169764), (126, 165722), (129, 161868), (141, 148092), (164, 127323), (172, 121401), (188, 111069), (246, 84882), (252, 82861), (258, 80934), (282, 74046), (287, 72756), (301, 69372), (329, 63468), (369, 56588), (387, 53956), (423, 49364), (492, 42441), (516, 40467), (564, 37023), (574, 36378), (602, 34686), (658, 31734), (738, 28294), (774, 26978), (846, 24682), (861, 24252), (903, 23124), (987, 21156), (1148, 18189), (1204, 17343), (1316, 15867), (1476, 14147), (1548, 13489), (1692, 12341), (1722, 12126), (1763, 11844), (1806, 11562), (1927, 10836), (1974, 10578), (2021, 10332), (2583, 8084), (2709, 7708), (2961, 7052), (3444, 6063), (3526, 5922), (3612, 5781), (3854, 5418), (3948, 5289), (4042, 5166)]