28289885

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1$

素因数の和:317

約数の個数: 32

約数和(自身を含む): 38707200

約数和(自身を除く): 10417315

約数列:

[1, 5, 13, 23, 65, 115, 127, 149, 299, 635, 745, 1495, 1651, 1937, 2921, 3427, 8255, 9685, 14605, 17135, 18923, 37973, 44551, 94615, 189865, 222755, 245999, 435229, 1229995, 2176145, 5657977, 28289885]

約数ペア:

[(1, 28289885), (5, 5657977), (13, 2176145), (23, 1229995), (65, 435229), (115, 245999), (127, 222755), (149, 189865), (299, 94615), (635, 44551), (745, 37973), (1495, 18923), (1651, 17135), (1937, 14605), (2921, 9685), (3427, 8255)]