321398855

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{283}}^1\times {\mathrm{431}}^1$

素因数の和:767

約数の個数: 32

約数和(自身を含む): 424009728

約数和(自身を除く): 102610873

約数列:

[1, 5, 17, 31, 85, 155, 283, 431, 527, 1415, 2155, 2635, 4811, 7327, 8773, 13361, 24055, 36635, 43865, 66805, 121973, 149141, 227137, 609865, 745705, 1135685, 2073541, 3781163, 10367705, 18905815, 64279771, 321398855]

約数ペア:

[(1, 321398855), (5, 64279771), (17, 18905815), (31, 10367705), (85, 3781163), (155, 2073541), (283, 1135685), (431, 745705), (527, 609865), (1415, 227137), (2155, 149141), (2635, 121973), (4811, 66805), (7327, 43865), (8773, 36635), (13361, 24055)]