20512459828

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2267}}^1\times {\mathrm{19009}}^1$

素因数の和:21304

約数の個数: 48

約数和(自身を含む): 43459597440

約数和(自身を除く): 22947137612

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 2267, 4534, 9068, 15869, 19009, 31738, 38018, 38539, 63476, 76036, 77078, 133063, 154156, 266126, 269773, 323153, 532252, 539546, 646306, 1079092, 1292612, 2262071, 4524142, 9048284, 43093403, 86186806, 172373612, 301653821, 603307642, 732587851, 1206615284, 1465175702, 2930351404, 5128114957, 10256229914, 20512459828]

約数ペア:

[(1, 20512459828), (2, 10256229914), (4, 5128114957), (7, 2930351404), (14, 1465175702), (17, 1206615284), (28, 732587851), (34, 603307642), (68, 301653821), (119, 172373612), (238, 86186806), (476, 43093403), (2267, 9048284), (4534, 4524142), (9068, 2262071), (15869, 1292612), (19009, 1079092), (31738, 646306), (38018, 539546), (38539, 532252), (63476, 323153), (76036, 269773), (77078, 266126), (133063, 154156)]