257103620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{241}}^1\times {\mathrm{1301}}^1$

素因数の和:1592

約数の個数: 48

約数和(自身を含む): 555808176

約数和(自身を除く): 298704556

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 241, 410, 482, 820, 964, 1205, 1301, 2410, 2602, 4820, 5204, 6505, 9881, 13010, 19762, 26020, 39524, 49405, 53341, 98810, 106682, 197620, 213364, 266705, 313541, 533410, 627082, 1066820, 1254164, 1567705, 3135410, 6270820, 12855181, 25710362, 51420724, 64275905, 128551810, 257103620]

約数ペア:

[(1, 257103620), (2, 128551810), (4, 64275905), (5, 51420724), (10, 25710362), (20, 12855181), (41, 6270820), (82, 3135410), (164, 1567705), (205, 1254164), (241, 1066820), (410, 627082), (482, 533410), (820, 313541), (964, 266705), (1205, 213364), (1301, 197620), (2410, 106682), (2602, 98810), (4820, 53341), (5204, 49405), (6505, 39524), (9881, 26020), (13010, 19762)]