18988896725

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{251}}^1\times {\mathrm{283}}^1$

素因数の和:615

約数の個数: 72

約数和(自身を含む): 25882280928

約数和(自身を除く): 6893384203

約数列:

[1, 5, 17, 25, 37, 85, 185, 251, 283, 289, 425, 629, 925, 1255, 1415, 1445, 3145, 4267, 4811, 6275, 7075, 7225, 9287, 10471, 10693, 15725, 21335, 24055, 46435, 52355, 53465, 71033, 72539, 81787, 106675, 120275, 157879, 178007, 232175, 261775, 267325, 355165, 362695, 408935, 789395, 890035, 1207561, 1775825, 1813475, 2044675, 2628221, 2683943, 3026119, 3946975, 4450175, 6037805, 13141105, 13419715, 15130595, 20528537, 30189025, 44679757, 65705525, 67098575, 75652975, 102642685, 223398785, 513213425, 759555869, 1116993925, 3797779345, 18988896725]

約数ペア:

[(1, 18988896725), (5, 3797779345), (17, 1116993925), (25, 759555869), (37, 513213425), (85, 223398785), (185, 102642685), (251, 75652975), (283, 67098575), (289, 65705525), (425, 44679757), (629, 30189025), (925, 20528537), (1255, 15130595), (1415, 13419715), (1445, 13141105), (3145, 6037805), (4267, 4450175), (4811, 3946975), (6275, 3026119), (7075, 2683943), (7225, 2628221), (9287, 2044675), (10471, 1813475), (10693, 1775825), (15725, 1207561), (21335, 890035), (24055, 789395), (46435, 408935), (52355, 362695), (53465, 355165), (71033, 267325), (72539, 261775), (81787, 232175), (106675, 178007), (120275, 157879)]