20121856

素因数分解:

$2^8\times {\mathrm{83}}^1\times {\mathrm{947}}^1$

素因数の和:1046

約数の個数: 36

約数和(自身を含む): 40691952

約数和(自身を除く): 20570096

約数列:

[1, 2, 4, 8, 16, 32, 64, 83, 128, 166, 256, 332, 664, 947, 1328, 1894, 2656, 3788, 5312, 7576, 10624, 15152, 21248, 30304, 60608, 78601, 121216, 157202, 242432, 314404, 628808, 1257616, 2515232, 5030464, 10060928, 20121856]

約数ペア:

[(1, 20121856), (2, 10060928), (4, 5030464), (8, 2515232), (16, 1257616), (32, 628808), (64, 314404), (83, 242432), (128, 157202), (166, 121216), (256, 78601), (332, 60608), (664, 30304), (947, 21248), (1328, 15152), (1894, 10624), (2656, 7576), (3788, 5312)]