261139516

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{353}}^1$

素因数の和:451

約数の個数: 96

約数和(自身を含む): 565221888

約数和(自身を除く): 304082372

約数列:

[1, 2, 4, 11, 17, 22, 23, 34, 43, 44, 46, 68, 86, 92, 172, 187, 253, 353, 374, 391, 473, 506, 706, 731, 748, 782, 946, 989, 1012, 1412, 1462, 1564, 1892, 1978, 2924, 3883, 3956, 4301, 6001, 7766, 8041, 8119, 8602, 10879, 12002, 15179, 15532, 16082, 16238, 16813, 17204, 21758, 24004, 30358, 32164, 32476, 33626, 43516, 60716, 66011, 67252, 89309, 132022, 138023, 166969, 178618, 184943, 258043, 264044, 276046, 333938, 349117, 357236, 369886, 516086, 552092, 667876, 698234, 739772, 1032172, 1396468, 1518253, 2838473, 3036506, 3840287, 5676946, 5934989, 6073012, 7680574, 11353892, 11869978, 15361148, 23739956, 65284879, 130569758, 261139516]

約数ペア:

[(1, 261139516), (2, 130569758), (4, 65284879), (11, 23739956), (17, 15361148), (22, 11869978), (23, 11353892), (34, 7680574), (43, 6073012), (44, 5934989), (46, 5676946), (68, 3840287), (86, 3036506), (92, 2838473), (172, 1518253), (187, 1396468), (253, 1032172), (353, 739772), (374, 698234), (391, 667876), (473, 552092), (506, 516086), (706, 369886), (731, 357236), (748, 349117), (782, 333938), (946, 276046), (989, 264044), (1012, 258043), (1412, 184943), (1462, 178618), (1564, 166969), (1892, 138023), (1978, 132022), (2924, 89309), (3883, 67252), (3956, 66011), (4301, 60716), (6001, 43516), (7766, 33626), (8041, 32476), (8119, 32164), (8602, 30358), (10879, 24004), (12002, 21758), (15179, 17204), (15532, 16813), (16082, 16238)]