256860.00000000

素因数分解:

$2^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1$

素因数の和:209

約数の個数: 72

約数和(自身を含む): 74692800

約数和(自身を除く): 40151132

約数列:

[1, 2, 4, 7, 14, 28, 29, 49, 58, 59, 98, 103, 116, 118, 196, 203, 206, 236, 406, 412, 413, 721, 812, 826, 1421, 1442, 1652, 1711, 2842, 2884, 2891, 2987, 3422, 5047, 5684, 5782, 5974, 6077, 6844, 10094, 11564, 11948, 11977, 12154, 20188, 20909, 23954, 24308, 41818, 42539, 47908, 83636, 83839, 85078, 146363, 167678, 170156, 176233, 292726, 297773, 335356, 352466, 585452, 595546, 704932, 1191092, 1233631, 2467262, 4934524, 8635417, 17270834, 34541668]

約数ペア:

[(1, 34541668), (2, 17270834), (4, 8635417), (7, 4934524), (14, 2467262), (28, 1233631), (29, 1191092), (49, 704932), (58, 595546), (59, 585452), (98, 352466), (103, 335356), (116, 297773), (118, 292726), (196, 176233), (203, 170156), (206, 167678), (236, 146363), (406, 85078), (412, 83839), (413, 83636), (721, 47908), (812, 42539), (826, 41818), (1421, 24308), (1442, 23954), (1652, 20909), (1711, 20188), (2842, 12154), (2884, 11977), (2891, 11948), (2987, 11564), (3422, 10094), (5047, 6844), (5684, 6077), (5782, 5974)]