2019900905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1\times {\mathrm{4679}}^1$

素因数の和:4909

約数の個数: 32

約数和(自身を含む): 2717245440

約数和(自身を除く): 697344535

約数列:

[1, 5, 11, 47, 55, 167, 235, 517, 835, 1837, 2585, 4679, 7849, 9185, 23395, 39245, 51469, 86339, 219913, 257345, 431695, 781393, 1099565, 2419043, 3906965, 8595323, 12095215, 36725471, 42976615, 183627355, 403980181, 2019900905]

約数ペア:

[(1, 2019900905), (5, 403980181), (11, 183627355), (47, 42976615), (55, 36725471), (167, 12095215), (235, 8595323), (517, 3906965), (835, 2419043), (1837, 1099565), (2585, 781393), (4679, 431695), (7849, 257345), (9185, 219913), (23395, 86339), (39245, 51469)]