7291215

素因数分解:

$3^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{353}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 13916448

約数和(自身を除く): 6625233

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 243, 255, 353, 405, 459, 765, 1059, 1215, 1377, 1765, 2295, 3177, 4131, 5295, 6001, 6885, 9531, 15885, 18003, 20655, 28593, 30005, 47655, 54009, 85779, 90015, 142965, 162027, 270045, 428895, 486081, 810135, 1458243, 2430405, 7291215]

約数ペア:

[(1, 7291215), (3, 2430405), (5, 1458243), (9, 810135), (15, 486081), (17, 428895), (27, 270045), (45, 162027), (51, 142965), (81, 90015), (85, 85779), (135, 54009), (153, 47655), (243, 30005), (255, 28593), (353, 20655), (405, 18003), (459, 15885), (765, 9531), (1059, 6885), (1215, 6001), (1377, 5295), (1765, 4131), (2295, 3177)]