42739025

素因数分解:

$5^2\times 7^2\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:414

約数の個数: 36

約数和(自身を含む): 62339760

約数和(自身を除く): 19600735

約数列:

[1, 5, 7, 25, 35, 49, 139, 175, 245, 251, 695, 973, 1225, 1255, 1757, 3475, 4865, 6275, 6811, 8785, 12299, 24325, 34055, 34889, 43925, 61495, 170275, 174445, 244223, 307475, 872225, 1221115, 1709561, 6105575, 8547805, 42739025]

約数ペア:

[(1, 42739025), (5, 8547805), (7, 6105575), (25, 1709561), (35, 1221115), (49, 872225), (139, 307475), (175, 244223), (245, 174445), (251, 170275), (695, 61495), (973, 43925), (1225, 34889), (1255, 34055), (1757, 24325), (3475, 12299), (4865, 8785), (6275, 6811)]