20805120004

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{19727}}^1\times {\mathrm{13877}}^1$

素因数の和:33627

約数の個数: 24

約数和(自身を含む): 38329925760

約数和(自身を除く): 17524805756

約数列:

[1, 2, 4, 19, 38, 76, 13877, 19727, 27754, 39454, 55508, 78908, 263663, 374813, 527326, 749626, 1054652, 1499252, 273751579, 547503158, 1095006316, 5201280001, 10402560002, 20805120004]

約数ペア:

[(1, 20805120004), (2, 10402560002), (4, 5201280001), (19, 1095006316), (38, 547503158), (76, 273751579), (13877, 1499252), (19727, 1054652), (27754, 749626), (39454, 527326), (55508, 374813), (78908, 263663)]