20457871135

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{401}}^1\times {\mathrm{18253}}^1$

素因数の和:18715

約数の個数: 32

約数和(自身を含む): 27121647168

約数和(自身を除く): 6663776033

約数列:

[1, 5, 13, 43, 65, 215, 401, 559, 2005, 2795, 5213, 17243, 18253, 26065, 86215, 91265, 224159, 237289, 784879, 1120795, 1186445, 3924395, 7319453, 10203427, 36597265, 51017135, 95152889, 314736479, 475764445, 1573682395, 4091574227, 20457871135]

約数ペア:

[(1, 20457871135), (5, 4091574227), (13, 1573682395), (43, 475764445), (65, 314736479), (215, 95152889), (401, 51017135), (559, 36597265), (2005, 10203427), (2795, 7319453), (5213, 3924395), (17243, 1186445), (18253, 1120795), (26065, 784879), (86215, 237289), (91265, 224159)]