1981326984

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{17117}}^1$

素因数の和:17199

約数の個数: 128

約数和(自身を含む): 6211779840

約数和(自身を除く): 4230452856

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 53, 56, 78, 84, 91, 104, 106, 156, 159, 168, 182, 212, 273, 312, 318, 364, 371, 424, 546, 636, 689, 728, 742, 1092, 1113, 1272, 1378, 1484, 2067, 2184, 2226, 2756, 2968, 4134, 4452, 4823, 5512, 8268, 8904, 9646, 14469, 16536, 17117, 19292, 28938, 34234, 38584, 51351, 57876, 68468, 102702, 115752, 119819, 136936, 205404, 222521, 239638, 359457, 410808, 445042, 479276, 667563, 718914, 890084, 907201, 958552, 1335126, 1437828, 1557647, 1780168, 1814402, 2670252, 2721603, 2875656, 3115294, 3628804, 4672941, 5340504, 5443206, 6230588, 6350407, 7257608, 9345882, 10886412, 11793613, 12461176, 12700814, 18691764, 19051221, 21772824, 23587226, 25401628, 35380839, 37383528, 38102442, 47174452, 50803256, 70761678, 76204884, 82555291, 94348904, 141523356, 152409768, 165110582, 247665873, 283046712, 330221164, 495331746, 660442328, 990663492, 1981326984]

約数ペア:

[(1, 1981326984), (2, 990663492), (3, 660442328), (4, 495331746), (6, 330221164), (7, 283046712), (8, 247665873), (12, 165110582), (13, 152409768), (14, 141523356), (21, 94348904), (24, 82555291), (26, 76204884), (28, 70761678), (39, 50803256), (42, 47174452), (52, 38102442), (53, 37383528), (56, 35380839), (78, 25401628), (84, 23587226), (91, 21772824), (104, 19051221), (106, 18691764), (156, 12700814), (159, 12461176), (168, 11793613), (182, 10886412), (212, 9345882), (273, 7257608), (312, 6350407), (318, 6230588), (364, 5443206), (371, 5340504), (424, 4672941), (546, 3628804), (636, 3115294), (689, 2875656), (728, 2721603), (742, 2670252), (1092, 1814402), (1113, 1780168), (1272, 1557647), (1378, 1437828), (1484, 1335126), (2067, 958552), (2184, 907201), (2226, 890084), (2756, 718914), (2968, 667563), (4134, 479276), (4452, 445042), (4823, 410808), (5512, 359457), (8268, 239638), (8904, 222521), (9646, 205404), (14469, 136936), (16536, 119819), (17117, 115752), (19292, 102702), (28938, 68468), (34234, 57876), (38584, 51351)]