90391815

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{21599}}^1$

素因数の和:21644

約数の個数: 32

約数和(自身を含む): 165888000

約数和(自身を除く): 75496185

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 93, 135, 155, 279, 465, 837, 1395, 4185, 21599, 64797, 107995, 194391, 323985, 583173, 669569, 971955, 2008707, 2915865, 3347845, 6026121, 10043535, 18078363, 30130605, 90391815]

約数ペア:

[(1, 90391815), (3, 30130605), (5, 18078363), (9, 10043535), (15, 6026121), (27, 3347845), (31, 2915865), (45, 2008707), (93, 971955), (135, 669569), (155, 583173), (279, 323985), (465, 194391), (837, 107995), (1395, 64797), (4185, 21599)]