61987725

素因数分解:

$3^2\times 5^2\times {\mathrm{43}}^2\times {\mathrm{149}}^1$

素因数の和:251

約数の個数: 54

約数和(自身を含む): 114431850

約数和(自身を除く): 52444125

約数列:

[1, 3, 5, 9, 15, 25, 43, 45, 75, 129, 149, 215, 225, 387, 447, 645, 745, 1075, 1341, 1849, 1935, 2235, 3225, 3725, 5547, 6407, 6705, 9245, 9675, 11175, 16641, 19221, 27735, 32035, 33525, 46225, 57663, 83205, 96105, 138675, 160175, 275501, 288315, 416025, 480525, 826503, 1377505, 1441575, 2479509, 4132515, 6887525, 12397545, 20662575, 61987725]

約数ペア:

[(1, 61987725), (3, 20662575), (5, 12397545), (9, 6887525), (15, 4132515), (25, 2479509), (43, 1441575), (45, 1377505), (75, 826503), (129, 480525), (149, 416025), (215, 288315), (225, 275501), (387, 160175), (447, 138675), (645, 96105), (745, 83205), (1075, 57663), (1341, 46225), (1849, 33525), (1935, 32035), (2235, 27735), (3225, 19221), (3725, 16641), (5547, 11175), (6407, 9675), (6705, 9245)]