20139008

素因数分解:

$2^{10}\times {\mathrm{71}}^1\times {\mathrm{277}}^1$

素因数の和:368

約数の個数: 44

約数和(自身を含む): 40972752

約数和(自身を除く): 20833744

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 128, 142, 256, 277, 284, 512, 554, 568, 1024, 1108, 1136, 2216, 2272, 4432, 4544, 8864, 9088, 17728, 18176, 19667, 35456, 36352, 39334, 70912, 72704, 78668, 141824, 157336, 283648, 314672, 629344, 1258688, 2517376, 5034752, 10069504, 20139008]

約数ペア:

[(1, 20139008), (2, 10069504), (4, 5034752), (8, 2517376), (16, 1258688), (32, 629344), (64, 314672), (71, 283648), (128, 157336), (142, 141824), (256, 78668), (277, 72704), (284, 70912), (512, 39334), (554, 36352), (568, 35456), (1024, 19667), (1108, 18176), (1136, 17728), (2216, 9088), (2272, 8864), (4432, 4544)]