391511848

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:291

約数の個数: 128

約数和(自身を含む): 939859200

約数和(自身を除く): 548347352

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 53, 56, 73, 91, 104, 106, 139, 146, 182, 212, 278, 292, 364, 371, 424, 511, 556, 584, 689, 728, 742, 949, 973, 1022, 1112, 1378, 1484, 1807, 1898, 1946, 2044, 2756, 2968, 3614, 3796, 3869, 3892, 4088, 4823, 5512, 6643, 7228, 7367, 7592, 7738, 7784, 9646, 10147, 12649, 13286, 14456, 14734, 15476, 19292, 20294, 25298, 26572, 27083, 29468, 30952, 38584, 40588, 50297, 50596, 51569, 53144, 54166, 58936, 71029, 81176, 95771, 100594, 101192, 103138, 108332, 131911, 142058, 191542, 201188, 206276, 216664, 263822, 284116, 352079, 383084, 402376, 412552, 527644, 537791, 568232, 670397, 704158, 766168, 923377, 1055288, 1075582, 1340794, 1408316, 1846754, 2151164, 2681588, 2816632, 3693508, 3764537, 4302328, 5363176, 6991283, 7387016, 7529074, 13982566, 15058148, 27965132, 30116296, 48938981, 55930264, 97877962, 195755924, 391511848]

約数ペア:

[(1, 391511848), (2, 195755924), (4, 97877962), (7, 55930264), (8, 48938981), (13, 30116296), (14, 27965132), (26, 15058148), (28, 13982566), (52, 7529074), (53, 7387016), (56, 6991283), (73, 5363176), (91, 4302328), (104, 3764537), (106, 3693508), (139, 2816632), (146, 2681588), (182, 2151164), (212, 1846754), (278, 1408316), (292, 1340794), (364, 1075582), (371, 1055288), (424, 923377), (511, 766168), (556, 704158), (584, 670397), (689, 568232), (728, 537791), (742, 527644), (949, 412552), (973, 402376), (1022, 383084), (1112, 352079), (1378, 284116), (1484, 263822), (1807, 216664), (1898, 206276), (1946, 201188), (2044, 191542), (2756, 142058), (2968, 131911), (3614, 108332), (3796, 103138), (3869, 101192), (3892, 100594), (4088, 95771), (4823, 81176), (5512, 71029), (6643, 58936), (7228, 54166), (7367, 53144), (7592, 51569), (7738, 50596), (7784, 50297), (9646, 40588), (10147, 38584), (12649, 30952), (13286, 29468), (14456, 27083), (14734, 26572), (15476, 25298), (19292, 20294)]