20039965

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1$

素因数の和:313

約数の個数: 32

約数和(自身を含む): 28016640

約数和(自身を除く): 7976675

約数列:

[1, 5, 11, 19, 55, 95, 127, 151, 209, 635, 755, 1045, 1397, 1661, 2413, 2869, 6985, 8305, 12065, 14345, 19177, 26543, 31559, 95885, 132715, 157795, 210947, 364363, 1054735, 1821815, 4007993, 20039965]

約数ペア:

[(1, 20039965), (5, 4007993), (11, 1821815), (19, 1054735), (55, 364363), (95, 210947), (127, 157795), (151, 132715), (209, 95885), (635, 31559), (755, 26543), (1045, 19177), (1397, 14345), (1661, 12065), (2413, 8305), (2869, 6985)]