17620144

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{389}}^1$

素因数の和:565

約数の個数: 40

約数和(自身を含む): 36270000

約数和(自身を除く): 18649856

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 149, 152, 298, 304, 389, 596, 778, 1192, 1556, 2384, 2831, 3112, 5662, 6224, 7391, 11324, 14782, 22648, 29564, 45296, 57961, 59128, 115922, 118256, 231844, 463688, 927376, 1101259, 2202518, 4405036, 8810072, 17620144]

約数ペア:

[(1, 17620144), (2, 8810072), (4, 4405036), (8, 2202518), (16, 1101259), (19, 927376), (38, 463688), (76, 231844), (149, 118256), (152, 115922), (298, 59128), (304, 57961), (389, 45296), (596, 29564), (778, 22648), (1192, 14782), (1556, 11324), (2384, 7391), (2831, 6224), (3112, 5662)]