251569215

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{4987}}^1$

素因数の和:5076

約数の個数: 48

約数和(自身を含む): 466876800

約数和(自身を除く): 215307585

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 59, 95, 171, 177, 285, 295, 531, 855, 885, 1121, 2655, 3363, 4987, 5605, 10089, 14961, 16815, 24935, 44883, 50445, 74805, 94753, 224415, 284259, 294233, 473765, 852777, 882699, 1421295, 1471165, 2648097, 4263885, 4413495, 5590427, 13240485, 16771281, 27952135, 50313843, 83856405, 251569215]

約数ペア:

[(1, 251569215), (3, 83856405), (5, 50313843), (9, 27952135), (15, 16771281), (19, 13240485), (45, 5590427), (57, 4413495), (59, 4263885), (95, 2648097), (171, 1471165), (177, 1421295), (285, 882699), (295, 852777), (531, 473765), (855, 294233), (885, 284259), (1121, 224415), (2655, 94753), (3363, 74805), (4987, 50445), (5605, 44883), (10089, 24935), (14961, 16815)]