6905405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 9676800

約数和(自身を除く): 2771395

約数列:

[1, 5, 13, 23, 31, 65, 115, 149, 155, 299, 403, 713, 745, 1495, 1937, 2015, 3427, 3565, 4619, 9269, 9685, 17135, 23095, 44551, 46345, 60047, 106237, 222755, 300235, 531185, 1381081, 6905405]

約数ペア:

[(1, 6905405), (5, 1381081), (13, 531185), (23, 300235), (31, 222755), (65, 106237), (115, 60047), (149, 46345), (155, 44551), (299, 23095), (403, 17135), (713, 9685), (745, 9269), (1495, 4619), (1937, 3565), (2015, 3427)]