19377436

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 38102400

約数和(自身を除く): 18724964

約数列:

[1, 2, 4, 13, 26, 52, 53, 79, 89, 106, 158, 178, 212, 316, 356, 689, 1027, 1157, 1378, 2054, 2314, 2756, 4108, 4187, 4628, 4717, 7031, 8374, 9434, 14062, 16748, 18868, 28124, 54431, 61321, 91403, 108862, 122642, 182806, 217724, 245284, 365612, 372643, 745286, 1490572, 4844359, 9688718, 19377436]

約数ペア:

[(1, 19377436), (2, 9688718), (4, 4844359), (13, 1490572), (26, 745286), (52, 372643), (53, 365612), (79, 245284), (89, 217724), (106, 182806), (158, 122642), (178, 108862), (212, 91403), (316, 61321), (356, 54431), (689, 28124), (1027, 18868), (1157, 16748), (1378, 14062), (2054, 9434), (2314, 8374), (2756, 7031), (4108, 4717), (4187, 4628)]