18002405

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:269

約数の個数: 32

約数和(自身を含む): 24572160

約数和(自身を除く): 6569755

約数列:

[1, 5, 17, 19, 71, 85, 95, 157, 323, 355, 785, 1207, 1349, 1615, 2669, 2983, 6035, 6745, 11147, 13345, 14915, 22933, 50711, 55735, 114665, 189499, 211793, 253555, 947495, 1058965, 3600481, 18002405]

約数ペア:

[(1, 18002405), (5, 3600481), (17, 1058965), (19, 947495), (71, 253555), (85, 211793), (95, 189499), (157, 114665), (323, 55735), (355, 50711), (785, 22933), (1207, 14915), (1349, 13345), (1615, 11147), (2669, 6745), (2983, 6035)]