261628128

素因数分解:

$2^5\times 3^2\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{311}}^1$

素因数の和:477

約数の個数: 144

約数和(自身を含む): 784982016

約数和(自身を除く): 523353888

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 32, 36, 46, 48, 69, 72, 92, 96, 127, 138, 144, 184, 207, 254, 276, 288, 311, 368, 381, 414, 508, 552, 622, 736, 762, 828, 933, 1016, 1104, 1143, 1244, 1524, 1656, 1866, 2032, 2208, 2286, 2488, 2799, 2921, 3048, 3312, 3732, 4064, 4572, 4976, 5598, 5842, 6096, 6624, 7153, 7464, 8763, 9144, 9952, 11196, 11684, 12192, 14306, 14928, 17526, 18288, 21459, 22392, 23368, 26289, 28612, 29856, 35052, 36576, 39497, 42918, 44784, 46736, 52578, 57224, 64377, 70104, 78994, 85836, 89568, 93472, 105156, 114448, 118491, 128754, 140208, 157988, 171672, 210312, 228896, 236982, 257508, 280416, 315976, 343344, 355473, 420624, 473964, 515016, 631952, 686688, 710946, 841248, 908431, 947928, 1030032, 1263904, 1421892, 1816862, 1895856, 2060064, 2725293, 2843784, 3633724, 3791712, 5450586, 5687568, 7267448, 8175879, 10901172, 11375136, 14534896, 16351758, 21802344, 29069792, 32703516, 43604688, 65407032, 87209376, 130814064, 261628128]

約数ペア:

[(1, 261628128), (2, 130814064), (3, 87209376), (4, 65407032), (6, 43604688), (8, 32703516), (9, 29069792), (12, 21802344), (16, 16351758), (18, 14534896), (23, 11375136), (24, 10901172), (32, 8175879), (36, 7267448), (46, 5687568), (48, 5450586), (69, 3791712), (72, 3633724), (92, 2843784), (96, 2725293), (127, 2060064), (138, 1895856), (144, 1816862), (184, 1421892), (207, 1263904), (254, 1030032), (276, 947928), (288, 908431), (311, 841248), (368, 710946), (381, 686688), (414, 631952), (508, 515016), (552, 473964), (622, 420624), (736, 355473), (762, 343344), (828, 315976), (933, 280416), (1016, 257508), (1104, 236982), (1143, 228896), (1244, 210312), (1524, 171672), (1656, 157988), (1866, 140208), (2032, 128754), (2208, 118491), (2286, 114448), (2488, 105156), (2799, 93472), (2921, 89568), (3048, 85836), (3312, 78994), (3732, 70104), (4064, 64377), (4572, 57224), (4976, 52578), (5598, 46736), (5842, 44784), (6096, 42918), (6624, 39497), (7153, 36576), (7464, 35052), (8763, 29856), (9144, 28612), (9952, 26289), (11196, 23368), (11684, 22392), (12192, 21459), (14306, 18288), (14928, 17526)]