20165401976

素因数分解:

$2^3\times {\mathrm{661}}^1\times {\mathrm{3813427}}^1$

素因数の和:3814094

約数の個数: 16

約数和(自身を含む): 37867340040

約数和(自身を除く): 17701938064

約数列:

[1, 2, 4, 8, 661, 1322, 2644, 5288, 3813427, 7626854, 15253708, 30507416, 2520675247, 5041350494, 10082700988, 20165401976]

約数ペア:

[(1, 20165401976), (2, 10082700988), (4, 5041350494), (8, 2520675247), (661, 30507416), (1322, 15253708), (2644, 7626854), (5288, 3813427)]