20155827475

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{263561}}^1$

素因数の和:263620

約数の個数: 48

約数和(自身を含む): 31374420480

約数和(自身を除く): 11218593005

約数列:

[1, 5, 7, 19, 23, 25, 35, 95, 115, 133, 161, 175, 437, 475, 575, 665, 805, 2185, 3059, 3325, 4025, 10925, 15295, 76475, 263561, 1317805, 1844927, 5007659, 6061903, 6589025, 9224635, 25038295, 30309515, 35053613, 42433321, 46123175, 115176157, 125191475, 151547575, 175268065, 212166605, 575880785, 806233099, 876340325, 1060833025, 2879403925, 4031165495, 20155827475]

約数ペア:

[(1, 20155827475), (5, 4031165495), (7, 2879403925), (19, 1060833025), (23, 876340325), (25, 806233099), (35, 575880785), (95, 212166605), (115, 175268065), (133, 151547575), (161, 125191475), (175, 115176157), (437, 46123175), (475, 42433321), (575, 35053613), (665, 30309515), (805, 25038295), (2185, 9224635), (3059, 6589025), (3325, 6061903), (4025, 5007659), (10925, 1844927), (15295, 1317805), (76475, 263561)]