19713640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{25939}}^1$

素因数の和:25969

約数の個数: 32

約数和(自身を含む): 46692000

約数和(自身を除く): 26978360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 25939, 51878, 103756, 129695, 207512, 259390, 492841, 518780, 985682, 1037560, 1971364, 2464205, 3942728, 4928410, 9856820, 19713640]

約数ペア:

[(1, 19713640), (2, 9856820), (4, 4928410), (5, 3942728), (8, 2464205), (10, 1971364), (19, 1037560), (20, 985682), (38, 518780), (40, 492841), (76, 259390), (95, 207512), (152, 129695), (190, 103756), (380, 51878), (760, 25939)]