81917475

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1367}}^1$

素因数の和:1444

約数の個数: 48

約数和(自身を含む): 146562048

約数和(自身を除く): 64644573

約数列:

[1, 3, 5, 15, 17, 25, 47, 51, 75, 85, 141, 235, 255, 425, 705, 799, 1175, 1275, 1367, 2397, 3525, 3995, 4101, 6835, 11985, 19975, 20505, 23239, 34175, 59925, 64249, 69717, 102525, 116195, 192747, 321245, 348585, 580975, 963735, 1092233, 1606225, 1742925, 3276699, 4818675, 5461165, 16383495, 27305825, 81917475]

約数ペア:

[(1, 81917475), (3, 27305825), (5, 16383495), (15, 5461165), (17, 4818675), (25, 3276699), (47, 1742925), (51, 1606225), (75, 1092233), (85, 963735), (141, 580975), (235, 348585), (255, 321245), (425, 192747), (705, 116195), (799, 102525), (1175, 69717), (1275, 64249), (1367, 59925), (2397, 34175), (3525, 23239), (3995, 20505), (4101, 19975), (6835, 11985)]