18289115

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{251}}^1$

素因数の和:347

約数の個数: 32

約数和(自身を含む): 25401600

約数和(自身を除く): 7112485

約数列:

[1, 5, 13, 19, 59, 65, 95, 247, 251, 295, 767, 1121, 1235, 1255, 3263, 3835, 4769, 5605, 14573, 14809, 16315, 23845, 61997, 72865, 74045, 192517, 281371, 309985, 962585, 1406855, 3657823, 18289115]

約数ペア:

[(1, 18289115), (5, 3657823), (13, 1406855), (19, 962585), (59, 309985), (65, 281371), (95, 192517), (247, 74045), (251, 72865), (295, 61997), (767, 23845), (1121, 16315), (1235, 14809), (1255, 14573), (3263, 5605), (3835, 4769)]