636687772

素因数分解:

$2^2\times 7^2\times {\mathrm{131}}^1\times {\mathrm{137}}^1\times {\mathrm{181}}^1$

素因数の和:467

約数の個数: 72

約数和(自身を含む): 1322809488

約数和(自身を除く): 686121716

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 131, 137, 181, 196, 262, 274, 362, 524, 548, 724, 917, 959, 1267, 1834, 1918, 2534, 3668, 3836, 5068, 6419, 6713, 8869, 12838, 13426, 17738, 17947, 23711, 24797, 25676, 26852, 35476, 35894, 47422, 49594, 71788, 94844, 99188, 125629, 165977, 173579, 251258, 331954, 347158, 502516, 663908, 694316, 879403, 1161839, 1215053, 1758806, 2323678, 2430106, 3248407, 3517612, 4647356, 4860212, 6496814, 12993628, 22738849, 45477698, 90955396, 159171943, 318343886, 636687772]

約数ペア:

[(1, 636687772), (2, 318343886), (4, 159171943), (7, 90955396), (14, 45477698), (28, 22738849), (49, 12993628), (98, 6496814), (131, 4860212), (137, 4647356), (181, 3517612), (196, 3248407), (262, 2430106), (274, 2323678), (362, 1758806), (524, 1215053), (548, 1161839), (724, 879403), (917, 694316), (959, 663908), (1267, 502516), (1834, 347158), (1918, 331954), (2534, 251258), (3668, 173579), (3836, 165977), (5068, 125629), (6419, 99188), (6713, 94844), (8869, 71788), (12838, 49594), (13426, 47422), (17738, 35894), (17947, 35476), (23711, 26852), (24797, 25676)]