19918840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{26209}}^1$

素因数の和:26239

約数の個数: 32

約数和(自身を含む): 47178000

約数和(自身を除く): 27259160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 26209, 52418, 104836, 131045, 209672, 262090, 497971, 524180, 995942, 1048360, 1991884, 2489855, 3983768, 4979710, 9959420, 19918840]

約数ペア:

[(1, 19918840), (2, 9959420), (4, 4979710), (5, 3983768), (8, 2489855), (10, 1991884), (19, 1048360), (20, 995942), (38, 524180), (40, 497971), (76, 262090), (95, 209672), (152, 131045), (190, 104836), (380, 52418), (760, 26209)]