259301825

素因数分解:

$5^2\times {\mathrm{31}}^2\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:366

約数の個数: 36

約数和(自身を含む): 341321904

約数和(自身を除く): 82020079

約数列:

[1, 5, 25, 31, 43, 155, 215, 251, 775, 961, 1075, 1255, 1333, 4805, 6275, 6665, 7781, 10793, 24025, 33325, 38905, 41323, 53965, 194525, 206615, 241211, 269825, 334583, 1033075, 1206055, 1672915, 6030275, 8364575, 10372073, 51860365, 259301825]

約数ペア:

[(1, 259301825), (5, 51860365), (25, 10372073), (31, 8364575), (43, 6030275), (155, 1672915), (215, 1206055), (251, 1033075), (775, 334583), (961, 269825), (1075, 241211), (1255, 206615), (1333, 194525), (4805, 53965), (6275, 41323), (6665, 38905), (7781, 33325), (10793, 24025)]