261519876

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{433}}^1\times {\mathrm{883}}^1$

素因数の和:1345

約数の個数: 72

約数和(自身を含む): 698253920

約数和(自身を除く): 436734044

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 433, 684, 866, 883, 1299, 1732, 1766, 2598, 2649, 3532, 3897, 5196, 5298, 7794, 7947, 8227, 10596, 15588, 15894, 16454, 16777, 24681, 31788, 32908, 33554, 49362, 50331, 67108, 74043, 98724, 100662, 148086, 150993, 201324, 296172, 301986, 382339, 603972, 764678, 1147017, 1529356, 2294034, 3441051, 4588068, 6882102, 7264441, 13764204, 14528882, 21793323, 29057764, 43586646, 65379969, 87173292, 130759938, 261519876]

約数ペア:

[(1, 261519876), (2, 130759938), (3, 87173292), (4, 65379969), (6, 43586646), (9, 29057764), (12, 21793323), (18, 14528882), (19, 13764204), (36, 7264441), (38, 6882102), (57, 4588068), (76, 3441051), (114, 2294034), (171, 1529356), (228, 1147017), (342, 764678), (433, 603972), (684, 382339), (866, 301986), (883, 296172), (1299, 201324), (1732, 150993), (1766, 148086), (2598, 100662), (2649, 98724), (3532, 74043), (3897, 67108), (5196, 50331), (5298, 49362), (7794, 33554), (7947, 32908), (8227, 31788), (10596, 24681), (15588, 16777), (15894, 16454)]