20287040

素因数分解:

$2^6\times 5^1\times {\mathrm{63397}}^1$

素因数の和:63414

約数の個数: 28

約数和(自身を含む): 48309276

約数和(自身を除く): 28022236

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 63397, 126794, 253588, 316985, 507176, 633970, 1014352, 1267940, 2028704, 2535880, 4057408, 5071760, 10143520, 20287040]

約数ペア:

[(1, 20287040), (2, 10143520), (4, 5071760), (5, 4057408), (8, 2535880), (10, 2028704), (16, 1267940), (20, 1014352), (32, 633970), (40, 507176), (64, 316985), (80, 253588), (160, 126794), (320, 63397)]