20738224

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{557}}^1$

素因数の和:757

約数の個数: 40

約数和(自身を含む): 43590960

約数和(自身を除く): 22852736

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 179, 208, 358, 557, 716, 1114, 1432, 2228, 2327, 2864, 4456, 4654, 7241, 8912, 9308, 14482, 18616, 28964, 37232, 57928, 99703, 115856, 199406, 398812, 797624, 1296139, 1595248, 2592278, 5184556, 10369112, 20738224]

約数ペア:

[(1, 20738224), (2, 10369112), (4, 5184556), (8, 2592278), (13, 1595248), (16, 1296139), (26, 797624), (52, 398812), (104, 199406), (179, 115856), (208, 99703), (358, 57928), (557, 37232), (716, 28964), (1114, 18616), (1432, 14482), (2228, 9308), (2327, 8912), (2864, 7241), (4456, 4654)]