645435565

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{401}}^1\times {\mathrm{3617}}^1$

素因数の和:4112

約数の個数: 16

約数和(自身を含む): 785395440

約数和(自身を除く): 139959875

約数列:

[1, 5, 89, 401, 445, 2005, 3617, 18085, 35689, 178445, 321913, 1450417, 1609565, 7252085, 129087113, 645435565]

約数ペア:

[(1, 645435565), (5, 129087113), (89, 7252085), (401, 1609565), (445, 1450417), (2005, 321913), (3617, 178445), (18085, 35689)]