20156293865

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1\times {\mathrm{491}}^1\times {\mathrm{1543}}^1$

素因数の和:2369

約数の個数: 32

約数和(自身を含む): 25761182976

約数和(自身を除く): 5604889111

約数列:

[1, 5, 17, 85, 313, 491, 1543, 1565, 2455, 5321, 7715, 8347, 26231, 26605, 41735, 131155, 153683, 482959, 757613, 768415, 2414795, 2612611, 3788065, 8210303, 12879421, 13063055, 41051515, 64397105, 237132869, 1185664345, 4031258773, 20156293865]

約数ペア:

[(1, 20156293865), (5, 4031258773), (17, 1185664345), (85, 237132869), (313, 64397105), (491, 41051515), (1543, 13063055), (1565, 12879421), (2455, 8210303), (5321, 3788065), (7715, 2612611), (8347, 2414795), (26231, 768415), (26605, 757613), (41735, 482959), (131155, 153683)]