640425159

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{419}}^1\times {\mathrm{15439}}^1$

素因数の和:15875

約数の個数: 24

約数和(自身を含む): 1011628800

約数和(自身を除く): 371203641

約数列:

[1, 3, 9, 11, 33, 99, 419, 1257, 3771, 4609, 13827, 15439, 41481, 46317, 138951, 169829, 509487, 1528461, 6468941, 19406823, 58220469, 71158351, 213475053, 640425159]

約数ペア:

[(1, 640425159), (3, 213475053), (9, 71158351), (11, 58220469), (33, 19406823), (99, 6468941), (419, 1528461), (1257, 509487), (3771, 169829), (4609, 138951), (13827, 46317), (15439, 41481)]