19380728

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{229}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 37260000

約数和(自身を除く): 17879272

約数列:

[1, 2, 4, 8, 71, 142, 149, 229, 284, 298, 458, 568, 596, 916, 1192, 1832, 10579, 16259, 21158, 32518, 34121, 42316, 65036, 68242, 84632, 130072, 136484, 272968, 2422591, 4845182, 9690364, 19380728]

約数ペア:

[(1, 19380728), (2, 9690364), (4, 4845182), (8, 2422591), (71, 272968), (142, 136484), (149, 130072), (229, 84632), (284, 68242), (298, 65036), (458, 42316), (568, 34121), (596, 32518), (916, 21158), (1192, 16259), (1832, 10579)]