19901967905

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{883}}^1\times {\mathrm{12487}}^1$

素因数の和:13413

約数の個数: 24

約数和(自身を含む): 25236050112

約数和(自身を除く): 5334082207

約数列:

[1, 5, 19, 95, 361, 883, 1805, 4415, 12487, 16777, 62435, 83885, 237253, 318763, 1186265, 1593815, 4507807, 11026021, 22539035, 55130105, 209494399, 1047471995, 3980393581, 19901967905]

約数ペア:

[(1, 19901967905), (5, 3980393581), (19, 1047471995), (95, 209494399), (361, 55130105), (883, 22539035), (1805, 11026021), (4415, 4507807), (12487, 1593815), (16777, 1186265), (62435, 318763), (83885, 237253)]