642668415

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{31573}}^1$

素因数の和:31663

約数の個数: 32

約数和(自身を含む): 1091197440

約数和(自身を除く): 448529025

約数列:

[1, 3, 5, 15, 23, 59, 69, 115, 177, 295, 345, 885, 1357, 4071, 6785, 20355, 31573, 94719, 157865, 473595, 726179, 1862807, 2178537, 3630895, 5588421, 9314035, 10892685, 27942105, 42844561, 128533683, 214222805, 642668415]

約数ペア:

[(1, 642668415), (3, 214222805), (5, 128533683), (15, 42844561), (23, 27942105), (59, 10892685), (69, 9314035), (115, 5588421), (177, 3630895), (295, 2178537), (345, 1862807), (885, 726179), (1357, 473595), (4071, 157865), (6785, 94719), (20355, 31573)]