20119765

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:229

約数の個数: 32

約数和(自身を含む): 26928000

約数和(自身を除く): 6808235

約数列:

[1, 5, 19, 29, 67, 95, 109, 145, 335, 545, 551, 1273, 1943, 2071, 2755, 3161, 6365, 7303, 9715, 10355, 15805, 36515, 36917, 60059, 138757, 184585, 211787, 300295, 693785, 1058935, 4023953, 20119765]

約数ペア:

[(1, 20119765), (5, 4023953), (19, 1058935), (29, 693785), (67, 300295), (95, 211787), (109, 184585), (145, 138757), (335, 60059), (545, 36917), (551, 36515), (1273, 15805), (1943, 10355), (2071, 9715), (2755, 7303), (3161, 6365)]