81690125

素因数分解:

$5^3\times {\mathrm{11}}^3\times {\mathrm{491}}^1$

素因数の和:539

約数の個数: 32

約数和(自身を含む): 112364928

約数和(自身を除く): 30674803

約数列:

[1, 5, 11, 25, 55, 121, 125, 275, 491, 605, 1331, 1375, 2455, 3025, 5401, 6655, 12275, 15125, 27005, 33275, 59411, 61375, 135025, 166375, 297055, 653521, 675125, 1485275, 3267605, 7426375, 16338025, 81690125]

約数ペア:

[(1, 81690125), (5, 16338025), (11, 7426375), (25, 3267605), (55, 1485275), (121, 675125), (125, 653521), (275, 297055), (491, 166375), (605, 135025), (1331, 61375), (1375, 59411), (2455, 33275), (3025, 27005), (5401, 15125), (6655, 12275)]