205873245

素因数分解:

$3^7\times 5^1\times {\mathrm{67}}^1\times {\mathrm{281}}^1$

素因数の和:374

約数の個数: 64

約数和(自身を含む): 377383680

約数和(自身を除く): 171510435

約数列:

[1, 3, 5, 9, 15, 27, 45, 67, 81, 135, 201, 243, 281, 335, 405, 603, 729, 843, 1005, 1215, 1405, 1809, 2187, 2529, 3015, 3645, 4215, 5427, 7587, 9045, 10935, 12645, 16281, 18827, 22761, 27135, 37935, 48843, 56481, 68283, 81405, 94135, 113805, 146529, 169443, 204849, 244215, 282405, 341415, 508329, 614547, 732645, 847215, 1024245, 1524987, 2541645, 3072735, 4574961, 7624935, 13724883, 22874805, 41174649, 68624415, 205873245]

約数ペア:

[(1, 205873245), (3, 68624415), (5, 41174649), (9, 22874805), (15, 13724883), (27, 7624935), (45, 4574961), (67, 3072735), (81, 2541645), (135, 1524987), (201, 1024245), (243, 847215), (281, 732645), (335, 614547), (405, 508329), (603, 341415), (729, 282405), (843, 244215), (1005, 204849), (1215, 169443), (1405, 146529), (1809, 113805), (2187, 94135), (2529, 81405), (3015, 68283), (3645, 56481), (4215, 48843), (5427, 37935), (7587, 27135), (9045, 22761), (10935, 18827), (12645, 16281)]