15720420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{262007}}^1$

素因数の和:262019

約数の個数: 24

約数和(自身を含む): 44017344

約数和(自身を除く): 28296924

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 262007, 524014, 786021, 1048028, 1310035, 1572042, 2620070, 3144084, 3930105, 5240140, 7860210, 15720420]

約数ペア:

[(1, 15720420), (2, 7860210), (3, 5240140), (4, 3930105), (5, 3144084), (6, 2620070), (10, 1572042), (12, 1310035), (15, 1048028), (20, 786021), (30, 524014), (60, 262007)]